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Monthly Archives: July 2021
Tin Qubits Give Diamond a New Shine – Physics
Posted: July 27, 2021 at 1:24 pm
July 26, 2021• Physics 14, 105
Nanophotonic devices based on tin-vacancy qubits in diamond show promise as building blocks of quantum repeaters, an important step toward the realization of long-range quantum networks.
Building long-range quantum networks is one of the most important and ambitious goals of quantum science and engineering. To connect these networks into a quantum internet will require intermediate stations where quantum informationcarried by photonscan be manipulated and refreshed. These stations, known as quantum repeaters, contain long-lived qubits with an optical interface that allows the photons to be entangled with the spins encoding these qubits. Color centers in solids are prime candidates for quantum repeaters, as they can have long coherence times, spin-selective optical transitions, and compatibility with photonic devices, such as cavities, that facilitate photon emission and routing. The tin-vacancy (SnV) center in diamond, a relatively new and promising color center [1], features several of these key elements. Until recently, however, these SnV centers had not been integrated into cavities in which their emission would be enhanced. Now, a team led by Jelena Vukovi at Stanford University has succeeded in integrating an SnV center into a nanophotonic device and has achieved 90% photon emission into the desired cavity mode [2]. This work is an important step toward the realization of long-range quantum networks.
A color center forms in a crystalline solid when one or more lattice atoms are missing or substituted by another species. Such complexes can absorb and emit light and, if they have a ground state with nonzero spin, can be used as a qubit. Intense research is dedicated to exploring color centers in diamond as building blocks of quantum networks [3]. The most studied diamond color center for quantum technology applications is the nitrogen vacancy (NV). With its remarkably long coherence time and spin-selective transition, the NV center has played a central role in the development of quantum networks, including the recent seminal demonstration of a three-node network with entanglement swapping capabilities [4]. Despite its successes, though, the NV suffers from a few shortcomings that limit its suitability for quantum networks. One issue is vibrational noise, which causes the majority of photons to be emitted incoherently, thereby reducing the success probability of spin-photon entanglement schemes. The other issue is the permanent electric dipole of this color center, leading to sensitivity to nearby charges. Such charge noise, which can destroy information stored in a qubit, is exacerbated when the NV is near surfaces, as in nanophotonic devices.
These limitations have led researchers to consider alternative qubits. A prominent family of diamond color centers currently under intense investigation consists of complexes made up of two carbon vacancies between which is a group-IV atom, an atom with four valence electrons. The inversion symmetry of these systems leads to a vanishing permanent electric dipole moment, making them suitable for integration in nanophotonic structures. Moreover, most of the emitted photons have frequencies in the desirable zero-phonon line, where there is no vibrational noise. One of the most studied group-IV centers in diamond is the silicon-vacancy (SiV) center, which has been integrated into nanophotonic devices and used in the first demonstration of memory-enhanced quantum communication [5]. However, the operation of an SiV center requires complex and expensive cryogenic technology based on dilution refrigeration to reach temperatures at which the coherence times are sufficiently long for applications [6].
The SnV center [7] has emerged as a potential solution. It has a number of desirable attributes: It obeys inversion symmetry, making it insensitive to charge noise; it emits photons primarily through the zero-phonon line; it exhibits longer coherence times than SiV; and it can be operated at a few kelvin, a temperature that can be reached with simpler technology than dilution refrigerators. These features make SnV particularly promising for use as a quantum network node. While optical initialization of SnV spins has been demonstrated [7], this color center had notuntil nowbeen integrated into nanophotonic structures, as required for applications.
For their demonstration, the Stanford team fabricated high-quality nanophotonic cavities from a diamond plate [2]. They first implanted tin atoms within the diamond. Typically, this integration of heavy impurity atoms into nanophotonic devices comes at the price of damaging the diamond surface and degrading the emitter quality. The authors overcame this problem using their novel color-center generation method that ensures precise placement of Sn impurity atoms below a high-quality diamond substrate [8]. The team then constructed photonic crystal cavities into the diamond plate. Each long, thin cavity had an array of holes etched along it. The cavities were also partly suspended in the air to make the light confinement stronger.
The researchers succeeded in efficiently coupling light in and out of the cavities via inverse-designed couplers that they developed in earlier work [9]. They could tune the cavity wavelength by depositing condensed argon on the device. When the wavelength of the cavity matched that of the optical transition of the color centers, the team observed a 40-fold enhancement of emission intensity compared with the off-resonant case. Furthermore, while the photons retained their sharp linewidths, the spontaneous emission rate was considerably enhanced. This narrow emission meant that photons have nearly 100% probability of being emitted into a single cavity mode. These elements are necessary for establishing high enough entanglement rates in quantum repeaters.
These new results, together with the recent demonstration of coherent optical control of the SnV spin state [10], are key steps toward the creation of SnV-based networks. The remaining critical step toward this goal is the creation of a high-fidelity quantum memory register composed of carbon-13 atomsthe only isotope of carbon with nonzero spinin the diamond lattice that can store quantum information transferred to and from the SnV center. Upon such a demonstration, the SnV center would be in a position to outshine its diamond-based predecessors.
Evangelia Takou is a Ph.D. candidate in the Department of Physics at Virginia Tech. Prior to joining Virginia Tech, she obtained a masters degree in condensed-matter physics and atomic physics in 2019 and an undergraduate degree in physics in 2018 at the University of Crete in Greece. In the second year of her Ph.D. studies, she was awarded the Ray F. Tipsword graduate scholarship. She was also selected to receive a competitive graduate school doctoral assistantship from the College of Science at Virginia Tech. Currently, she is working on theoretical protocols for the control of qubits based on color centers.
Sophia Economou is a professor of physics at Virginia Tech. She obtained her Ph.D. in 2006 from the University of California, San Diego, where she worked on theoretical aspects of optically controlled spin qubits. After that, she spent several years at the Naval Research Laboratory in Washington, D.C., first as an NRC postdoc and later as a staff researcher. Her current research interests include quantum computing with various types of qubits, including spin-based, superconducting, and photons. She is also interested in photonic entanglement in quantum networks as well as quantum simulation algorithms for solving many-body problems on quantum devices.
Alison E. Rugar, Shahriar Aghaeimeibodi, Daniel Riedel, Constantin Dory, Haiyu Lu, Patrick J. McQuade, Zhi-Xun Shen, Nicholas A. Melosh, and Jelena Vukovi
Phys. Rev. X 11, 031021 (2021)
Published July 26, 2021
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First-of-Its-Kind National Quantum Science And Technology Symposium – Yahoo India News
Posted: at 1:24 pm
- Organized by IIIT Hyderabad, Quantum Ecosystems Technology Council of India, IEEE Quantum Initiative, in association with PSA, Govt of India - Launchpad for Quantum Ecosystems and Technology Council of India ( QETCI) HYDERABAD, India, July 26, 2021 /PRNewswire/ -- The National Quantum Science and Technology Symposium (NQSTS), organized by IIIT Hyderabad, Quantum Ecosystems Technology Council of India, IEEE Quantum Initiative, in association with PSA, Govt of India is being held online from 26 July - 3 August 2021.
Through talks delivered by some of India's best quantum experts from government, academia and industry, the symposium will cover diverse aspects of the field and provide an overview of the scope and impact of quantum computing in India.
NQSTS launched the Quantum Ecosystems and Technology Council of India (QETCI), headed by Reena Dayal,which will work closely with various members of quantum ecosystems across government, academia, industry, startups and investors to accelerate the quantum ecosystem in India.
The symposium features several eminent keynote speakers - Prof Vijay Raghavan, PSA to Govt of India; Prof K Sivan, Chairman ISRO; Ajay Prakash Sawhney, Secretary MEITY; Dr KR MuraliMohan, Mission Director NM-ICPS, DST; Jayesh Ranjan, Principal Secretary, IC&T Govt of Telangana and Prof P J Narayanan, Director IIIT Hyderabad. It also includes several keynote speakers from Microsoft, Amazon, IBM, QNU Labs, TCS and IQM.
Speaking at the inauguration, Prof. P J Narayanan, Director, IIITH, said, 'Quantum computing is a truly futuristic area with huge potential that we must invest in today to reap benefits in the near future. IIIT Hyderabad had recognized the importance of this area and started research in related areas about 10 years. Our group today has 6 faculty members with mix of expertise in Physics, Mathematics, Computer Science, etc. We have a productive group consisting of Masters, PhD, as well as B.Tech students conducting research on different aspects of quantum computing, producing papers in journals and conferences, etc. To give greater push to this area, we have formed a Centre for Quantum Science & Technology (CQST) and hope to develop it into a major national and international player in the area of Quantum Information Sciences, from creating quantum computers to developing quantum computing models to quantum algorithms and their applications to various areas like Healthcare, Sciences, Machine Learning, etc. It is only natural that IIIT Hyderabad stay ahead in these areas for years to come, just as we have done in other areas of computing and communications.' Prof K Sivan, Chairman ISRO, said, 'India will be quantum-enabled in this decade. We will infuse the encryption of the satellite data with the power of quantum mechanics.' Commending the symposium, Ajay Prakash Sawhney, Secretary MEITY, said, 'Congratulations to the Quantum Ecosystems and Technology Council of India and IIIT Hyderabad for working towards bringing together the quantum ecosystem through this symposium. This is the right time for international corporates to establish their quantum presence in India, and for Indian companies to have dedicated teams on quantum technologies to take up the challenges that abound in this field.' The symposium organising committee was led by Prof Indranil Chakravarty. More details on the symposium at https://nqsts.com About IIIT-Hyderabad The International Institute of Information Technology, Hyderabad (IIITH) is an autonomous research university founded in 1998 that focuses on the core areas of Information Technology, such as Computer Science, Electronics and Communications, and their applications in other domains through inter-disciplinary research that has a greater social impact. Some of its research domains include Visual Information Technologies, Human Language Technologies, Data Engineering, VLSI and Embedded Systems, Computer Architecture, Wireless Communications, Algorithms and Information Security, Robotics, Building Science, Cognitive Science, Earthquake Engineering, Computational Natural Sciences and Bioinformatics, Education Technologies, Power Systems, IT in Agriculture and e-Governance.
Website: https://www.iiit.ac.in/ Logo: https://mma.prnewswire.com/media/600789/IIIT_Hyderabad_Logo.jpg PWR PWR
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Physicists have created the Worlds thinnest magnet Just one atom thick – News Landed
Posted: at 1:24 pm
Can you guess the size of the thinnest magnet? It is just one atom thick.
Scientists from the University of California Berkeley have created the first 2D magnet, just an atom thick. This ultra-thin magnet is also chemically stable and retains magnetism at room temperatures. The research is published inNature Communications.
The new magnet can revolutionize the research of ferromagnetism and the development of new types of memory devices. It could be a game-changer for the field of quantum physics.
Previous ultra-thin 2D magnets had to be kept at ultracold conditions to retain the chemical properties and magnetism, making it impossible to use them in practical application.
According to material scientist Jie Yao from the University of California, State-of-the-art 2D magnets need very low temperatures to function. But for practical reasons, a data center needs to run at room temperature. Our 2D magnet is not only the first that operates at room temperature or higher, but it is also the first magnet to reach the true 2D limit: Its as thin as a single atom!
Scientists made this state-of-the-art magnet using cobalt-doped van der Waals zinc oxide. A carefully measured ratio of Graphene oxide is mixed in acetate dihydrates of zinc and cobalt. When this mixture is baked in a vacuum, the mixture cools into a single layer of zinc oxide interspersed with cobalt atoms sandwiched between layers of graphene. The graphene layer is burned off by burning in the air, leaving a single layer of cobalt-doped zinc oxide.
The amount of cobalt scattered among the zinc oxide determines the strength of magnetism. A sweet spot of 12 percentage of cobalt makes the layer strongly magnetic. The material also was found to be stable even at temperatures around 212 degrees Fahrenheit.
Electrons are small magnets with North and South poles. They have their own tiny magnetic field, and their magnetic orientations cancel each other out in most materials. However, in ferromagnetic materials, electrons with the same magnetic orientation group themselves in domains. All the domains are oriented in the same direction in a magnetic material.
According to the researchers, the free electrons in the zinc oxide could be acting as intermediaries to keep the film magnetic even at high temperatures.
This material opens up new possibilities in various technological fields include memory devices and quantum computing. Further analysis is required to understand the limitations of this material.
Source: ScienceAlert
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UK Launches Department of Engineering Technology in Partnership With BCTC, Toyota – UKNow
Posted: at 1:24 pm
LEXINGTON, Ky. (July 27, 2021) Given advancements in technology, society is calling upon engineers to solve the worlds most complex problems.
That call is being answered thanks to a unique partnership between the College of Engineering at the University of Kentucky UK and the Bluegrass Community and Technical College (BCTC). Students can now earn an Associate of Applied Science (AAS) and a Bachelor of Science (BS) in Engineering Technology.
The new Department of Engineering Technology made possible in large part to a $2.25 million gift from Toyota offers two four-year undergraduate degrees inlean systems engineering technology and computer engineering technology.
Additionally, the innovative collaboration involves BCTCs Integrated Engineering Technology and Computer Engineering Technology programs.
Graduates of the new pathways will be trained in the latest technologies and equipped with the practical skills necessary for thriving in advanced technology industries.
"The College of Engineering Department of Technology will be an integral part of our university's efforts to advance the Commonwealth through ingenuity and collaboration, President Eli Capiloutosaid. Because of Toyotas generosity and commitment to the state we serve, we can forge new paths toward discovery and empower our community to achieve more in partnership with BCTC.
Were excited to partner with Toyota and UK to provide this opportunity to our students, Bluegrass Community and Technical College Provost Greg Feeneysaid. Recruiting students of all backgrounds will enrich our programs and the industry and empower students to establish careers that will better their lives and communities.
Bachelor of Science in Lean Systems Engineering Technology (LST)
The LST program will prepare students to thrive in a highly competitive global marketplace and provide the skills necessary to improve quality output, streamline processes and reduce waste.
The demand for increasingly advanced skills in manufacturing requires expanding the engineering pipeline, Nelson Akafuah, inauguralchair of the Department of Engineering Technology, said. In the ever-evolving world of manufacturing where manufacturers must connect, predict and adapt to transition from developing products to engineering experiences a unique skill set in continuous improvement and creative problem-solving is needed. This new degree path will equip students with those necessary skills.
The curriculum will include classroom instruction and lab experiences, which will build upon UK Engineerings more than 25-year partnership with Toyota. LST students will benefit from professional instructors, some of whom are former Toyota executives.
This exciting educational partnership will go a long way to ensuring more Kentucky students are prepared to take on the challenges of an advanced global marketplace, Tom Buffetta, vice president of production engineering at Toyota, said. We are thrilled to continue our long-term partnerships with both UK College of Engineering and Bluegrass Community and Technical College in this way and look forward to helping equip more students with the skills and knowledge necessary to have a positive impact on society.
LST students spend their first years earning their AAS degree in integrated engineering technology at BCTCs Georgetown campus, before working toward their bachelors degree at UKs main campus.
Bachelor of Science in Computer Engineering Technology (CPT)
The CPT program will provide in-depth knowledge of hardware and software design, development and maintenance. Students will learn industry-standard approaches to application software development and state-of-the-art problem-solving techniques for developing application code and firmware, including networking and web operations.
The curriculum will include classroom instruction and lab experiences where students will gain a strong background in cutting-edge development with programming languages currently used in industry.
Additionally, those in the program will gain an architectural understanding of computer systems from low-level gate design to high-end microprocessors and current bus standards.
Complementary technologies in data analytics, machine learning, human-machine interaction, intelligent robots, interconnected supply chain and the ability to transmit digital instructions to the physical world that can run smart, cost-efficient and automated plants requires a new set of computing skills, Akafuah explained. This degree path will uniquely prepare students to become leaders in this advancing industry.
CPT students spend their first years earning their AAS degree in computer engineering technology at BCTCs Newtown campus or online, before working toward their bachelors degree at UKs main campus.
Toyotas Investment to Diversify Engineering Workforce
The department is made possible, in large part, to a $2.25 million gift from one of the worlds largest automakers.
The funds will be used toward laboratory enhancement, as well as the establishment of a Toyota Engineering Technology Distinguished Professorship.
In April, Toyota announced a $1.7 million investment to increase opportunities for underrepresented students and assist them in earning engineering degrees. The gift will be used to establish and support the Toyota Engineering Technology Diversity Scholarship Fund, which will provide annual scholarships for undergraduate students.
Building a stronger Kentucky will require deliberate and sustainable efforts to provide equal access to quality education. This program will give more people a chance to build great careers in fields like engineering, Susan Elkington, president of Toyota Motor Manufacturing Kentucky (TMMK), said. Toyota is committed to providing resources, time and knowledge to help build stronger communities in which we operate. Were thankful for great education partners that have the same mission.
Preference will be given to students whose ethnic, racial, gender or background would enhance thediversity of their institution, as long as these preferences are narrowly tailored to the universitys achievement of its interest in obtaining the educational benefits of a diverse student body. However, every student who is enrolled in the program, is a Kentucky resident and has unmet financial need will have an opportunity to compete for the scholarship.
Beginning Fall 2021, 35 students over a five-year period will be selected to receive full-tuition scholarships. In addition to the preferences, participation in the program and Kentucky residency status, recipients will be determined after a review of the applicants qualifications, such as academic merit, extracurricular and volunteer activities, and professional goals.
For additional information about Toyota, visitwww.toyotanewsroom.com.
Learn more about BCTCs Integrated Engineering Technology and Computer Engineering Technology programs on the BCTC website.
To learn more about the Department of Engineering Technology, you can visit the UK Engineering website.
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Managing Operations Technology with IT – Automation World
Posted: at 1:24 pm
Its no secret that the worlds of OT (operations technology) and IT (information technology) are becoming ever closer. The growing connection of plant floor devices to enterprise networks for Industry 4.0 and Internet of Things initiatives is driving this convergence of OT and IT. Thats why these two technology groups cannot remain isolated from each other in a world that increasingly requires operations visibility across supply chains for manufacturers to stay competitive.
To better understand how IT and OT are merging, and the kinds of technologies enabling this, we connected with James Destro of ServiceNow, a supplier of digital workflow software to connect people, functions and systems across organizations, and Carey Blunt of Fujitsu, one of the worlds largest IT services providers, for a recent episode of the Automation World Gets Your Questions Answered podcast series.
Beginning with an exploration of how OT devices can be discovered, secured, and managed with the same kinds of tools used by IT, we focused on the core plant floor issues of asset management and security to understand why it benefits a manufacturer or processing company to secure and manage operations technology in a similar fashion to IT.
James Destro of ServiceNowCompanies are starting to look at how they can have a proactive stance toward plant floor technologies that typically have been air gapped or disconnected from the enterprise network, said Destro. To effectively manage this connection, companies are looking for a better way to find and understand the current topology of OT systems on their network and be able to manage them proactively to respond to vulnerabilities and security incidents. IT tools have a long-standing framework of doing just that for cloud systems and servers in data centers, as well as laptops and distributed devices. This leveraging of IT best practices on the OT side promises a lot of strength and value for industry.
Explaining how this process of connecting IT and OT can best be started, Blunt said, When you're trying to get standardization between your IT and your OT teams, youre really focusing on getting your processes, your people, and your technology working in the same way. Most of our customers approach this by focusing on the technology and process parts firstintegrating a little bit at the network level to find out what assets exist on the OT network, linking those assets in the same place, and keeping them there.
Carey Blunt of FujitsuAs you discover assets on the network, store them in a database, and map their relationships, you need a tool that can help with your security responses and with predictive and proactive maintenance for those assets. When youre pulling these data points into your IT structure, that's where workflow technologies like those offered by ServiceNow are important, said Blunt, because they've got the CMDB (configuration management database) and the capability to exercise the workflow for both the IT and OT worlds.
In both IT and OT, relationship mapping is considered one of the fundamental pillars to understanding how IT and OT systems can be impacted by network changes, incidents, or a vulnerability in any of these systems.
Relationship mapping happens across two different vectors, explained Destro. The first vector involves understanding the data and communication relationships of the actual OT system. This could mean an HMI (human machine interface) managing a SCADA (supervisory control and data acquisition) system or a SCADA system controlling a PLC (programmable logic controller) or exchanging data with a historian. The second type of relationship mapping is understanding the context of the operational technology as it's used for manufacturing. This means that we not only need to understand if were dealing with a SCADA system, a PLC, an HMI or historian, but also automating the process of how we interact with these technologies in the manufacturing facility. This provides an overarching contextwhat we call a manufacturing system dependencyso that whenever we're changing configurations, doing configuration compliance, change management, or incident management, we can understand the potential impacts of these actions on other operational technologies, as well as what the potential impacts could be to the actual production process.
Beyond asset management, Destro noted that relationship mapping is also an important aspect of cybersecurity. Relationship mapping is critical to cybersecurity, especially around vulnerability response, incident response, and understanding how things are connected to the network, what relationships they should have by default, and what relationships might be established if an incident occurs, he said. This knowledge helps identify what systems may need to be taken offline when applying a patch, for example.
As the concept of predictive maintenancewhere sensors on equipment feed data into analytics software to provide advance warning of failures so that unplanned downtimes are mitigatedgains ground across manufacturing and processing companies, its application predominantly applies in the OT arena. But when OT assets are connected to IT systems, you can also apply the IT concept of predictive outage avoidance.
Having a comprehensive OT change management systemand all the metadata it provides about systems and their relationshipsenables manufacturers to apply incident management. This occurs when there's an upset to a process, asset, or to the systems management technology itself.
Blunt explained that once an asset is connected to the enterprise network and you have access to operational data about that asset and how its interacting with other devices, that datalike event and error messagescan be used to see patterns. These patterns give you something more thorough than a time-based prediction of roughly when these components are going to wear out.
Transferring asset data into action on the plant floor is the core function of field service management applications, which helps direct engineers to the right place at the right time with the right parts, said Blunt. Field service management is about making a better experience for the engineers, because their time is used more productively, and it provides a better experience for the operations team because downtime is reduced and they're able to plan better, he said. Ultimately, this translates into a better experience for the companys customers, employees, and board because you have fewer outages and your production time is working to its optimum efficiency.
As manufacturers focus on the management and governance of OT systems, change management becomes a critical capability. Its importance stems from the fact that having a managed workflow process for changes helps the manufacturing workforce better understand numerous applicationsfrom attaching a new sensor to the system, upgrading or changing configurations and bridging these changes across the engineering network, to applying patches and ensuring that all the appropriate approvals to make any change have been received.
Having a comprehensive OT change management systemand all the metadata it provides about systems and their relationshipsenables manufacturers to apply incident management. This occurs when there's an upset to a process, asset, or to the systems management technology itself.
Destro said incident management can come in two forms. It could be one of the systems is not respondingdue to a device or electrical failureand in response we're driving workflows towards solving that particular challenge. Or it could be a security or operational incident that triggers security workflowswhat we call a security incident response, he explained. Both of these are critical incidents that need to be handled in in different ways with particular workflows. One towards solving the problem and returning the system to normal, and the other towards mitigating the impact of this incident moving forward. In either case, the technology will help you determine which systems need to be isolated, what mitigation factors need to be put in place, and what actions need to be completed as part of the response workflow.
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Virtual Reality Is the Rich White Kid of Technology – WIRED
Posted: at 1:24 pm
It has been seven years since Palmer Luckey appeared on the cover of WIRED magazine. The June 2014 issue declared, This kid is about to change gaming, movies, TV, music, design, medicine, sex, sports, art, travel, social network, educationand reality. In 2016, Facebook acquired his virtual reality company, Oculus, for $2 billion. It now invests $18.5 billion annually into research and development, and Facebook Reality Labs, the companys Augmented Reality/Virtual Reality division, accounts for as much as 20 percent of its entire workforce, with no sign of slowing down. But despite the many years, billions of dollars, and year-long pandemic requiring at-home entertainment, the results thus far have been pretty lackluster. The headsets are spiffier and the games are more lucrative, but our minds nevertheless remain collectively un-blown.
Its not just Facebook and Oculus. In May 2016, WIREDs cover story introduced readers to Magic Leap, A mysterious startup, a mountain of money, and the quest to create a new kind of reality. Magic Leap was developing a set of semitransparent Mixed Reality goggles that could integrate virtual objects into the users physical environment. The company raised more than $2 billion in funding from A-list Silicon Valley investors. It looked like the biggest leap forward in hardware since the iPhone. But the actual product never lived up to the breathtaking demo. The company laid off 1,000 employees in 2020, hired a new CEO, and pivoted to focus on narrower enterprise applications. The Mixed Reality future is still, well, the future.
Somehow, none of these less-than-ideal outcomes have affected confidence in VR. In fact, Facebook doubled down on Monday, announcing a new group within the company dedicated to developing its Horizons VR world. Mark Zuckerberg recently told Facebook employees that over the next five years he expects to transition from people seeing us as primarily being a social media company to being a metaverse company. Silicon Valley billionaires and venture capitalists, it seems, are incapable of saying no to a fancy headset with a big dream. And this dates back 35 yearsJaron Lanier was the Palmer Luckey of the 1980s and early 1990s!
The technology is always about to turn a corner, about to be more than just a gaming device, about to revolutionize fields like architecture, defense, and medicine. The future of work, entertainment, travel, and society is always on the verge of a huge virtual upgrade. VR is a bit like a rich white kid with famous parents: It never stops failing upward, forever graded on a generous curve, always judged based on its potential rather than its results.
One reason that VR has been offered such an endless string of second chances (VRs proverbial lineage, if you will) is that it has played an outsized role in the popular science fiction that our collective image of the future is built around. William Gibson coined the term cyberspace in his 1984 book Neuromancer. The term later became synonymous with the World Wide Web, but Gibsons initial rendering was of a virtual realm that console cowboys could enter and exit. Gibson and his cyberpunk peers heavily shaped the culture of 1980s techbefore the dotcom boom, before the tech bros.
When Lanier unveiled his bulky head-mounted display and dataglove in 1987, he was inviting tech hobbyists to be the first inhabitants of the virtual future they had glimpsed in cyberpunk novels. Neal Stephensons 1992 Snow Crash and Ernest Clines 2011 Ready Player One later were massive science fiction hits whose stories unfolded in a future where VR is a fixture.
When Zuckerberg says that he has been thinking about some of this stuff since [he] was in middle school and just starting to code, it isnt hard to guess what books he was reading at the time. For the Gen X and Millennial tech entrepreneurs who dominate Silicon Valley today, the science fiction stories of their youth have always treated VR as an ambient part of the future technological landscape.
Just as the current billionaire space race is, at least in part, evidence that inside every tech billionaire is an inner child who dreamed of flying his own rocket ship, the VR arms race is premised on an assumption that mass adoption is inevitablethe only question is when that future will arrive, and which company will get phenomenally wealthy when it does.
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Q&A Collections: Using Technology With Students (Opinion) – Education Week
Posted: at 1:23 pm
During the summer, I am sharing thematic posts bringing together responses on similar topics from the past 10 years. You can see all those collections from the first nine years here.
Here are the ones Ive published so far:
The 11 Most Popular Classroom Q&A Posts of the Year
Race & Racism in Schools
School Closures & the Coronavirus Crisis
Classroom-Management Advice
Best Ways to Begin the School Year
Best Ways to End the School Year
Student Motivation & Social-Emotional Learning
Implementing the Common Core
Challenging Normative Gender Culture in Education
Teaching Social Studies
Cooperative & Collaborative Learning
Todays theme is on using tech with students . You can see the list of posts following this excerpt from one of them:
* Teacher-Recommended Tools for Online Learning
Four teachers offer several suggestions for online tools to promote interactive learning, and many others offer readers comments about their favorites.
* 10 Favorite Online Teaching Tools Used by Educators This Year
Three other teachers and I share our favorite online tools to use during this unusual year.
* Five Ways to Differentiate Instruction in an Online Environment
Examples from two educators include giving students the time to take physical breaks as well as pausing academic presentations to give students time to think.
* Seven Ways to Support ELLs in Online Content Classes
I offer seven suggestions on how to help English-learners when doing remote teaching, including by providing graphic organizers and models.
* Start With the Content & Not With the Tech
Danielle Herro, Blake Harvard, Michael D. Toth, Michael Fisher, and Kenneth Tam wrap up this three-part series on using technology with students.
* Ways to Use Tech in the Classroom
Jayme Linton, Eric Sheninger, Cindy Garcia, Suzanne Lucas, Ari Flewelling, Carrie Rogers-Whitehead, Carolyn Brown, and Jerry Zimmermann contribute their ideas on how to use ed-tech.
* Technology Doesnt Replace Good Teaching
Anne Jenks, Michelle Shory, Ed.S, Irina V. McGrath, Ph.D., Kim Jaxon, Beth Gotcher, Elizabeth Stringer Keefe, Ph.D., and Keisha Rembert share their suggestions for using tech effectively in class.
* Technology Will Never Replace a Great Teacher
Mark Estrada, Jenny Grant Rankin, Sarah Thomas, and Tom Daccord share their ideas about what ed-tech will look like 25 years from today.
* Ways to Use Tech in Math Class
Bobson Wong, Elissa Scillieri, Jennifer Chang-Wathall, and Anne Jenks offer their recommendations on using tech in math classes.
* Tech Does Not Replace PedagogyIt Complements It
Kristan Morales, Cathy Seeley, and Madeline Whitaker Good write about how to use tech effectively in math classes.
* Tech Tools Have the Power to Enhance Academic Work
Jeryl-Ann Asaro, Sean Ruday, Carolyn Brown, Jerry Zimmermann, and Sarah Thomas offer their ideas on tech in the English classroom.
* Ways to Use Tech Effectively in English Classes
Jennifer Casa-Todd, Jenny Vo, Maggie Verdoia, Sarah Acosta Landry, Ingrid Nelson, and Stephanie Affinito share suggestions on how to use tech in English classes.
* Ways to Use Tech in Science Class
Erin Bridges Bird, Peggy Harte, Patrick Brown, James Concannon, Nick Cusumano, and Donna Markey share ways to use ed-tech in science classes.
* Ways to Use Tech in Social Studies Classes
Sarah Cooper and Ken Halla share suggestions on how to use tech in social studies classes.
* Social Media Helps Teachers & Students Flatten the Schoolhouse WallsGuests Kathleen Neagle Sokolowski, Steve Wyborney, and Brandon C. Waite write their thoughts about the roles of social media in education.
* Using Social Media Wisely in Education>
Lorena German, Shaeley Santiago, Jeremy Hyler, Troy Hicks, and Mary Howard share their ideas on using social media in education.
* Embracing Technology as a Tool for Differentiation
Elizabeth Stringer Keefe, Becky Shiring, Katie Robinson, Sonny Magana, and Monica Burns contribute their suggestions on using tech to differentiate instruction.
* Ways to Use Tech to Differentiate Instruction
Anne Jenks, Ge-Anne Bolhuis, Nancy Sulla, Sarah Shartzer, Daniel L. Schwartz, Jessia M. Tsang, and Kristen P. Blair share their suggestions on using technology to differentiate instruction.
* Using Videos to Enhance Learning Experiences for Students
Amber Chandler, Jen Schwanke, Dawn Wilson, Katie Alaniz, Laura Greenstein, Russel Tarr, and Sarah Thomas share their ideas on using video as a teaching tool.
* The Best Ways to Use Video in Class
Jason Griffith, Ken Halla, Rebecca Alber, Jennie Farnell, Cheryl Mizerny, and Michele L. Haiken share their suggestions on how teachers can most effectively use video in the classroom.
* Double Flip Your Classroom
Daniel Schwartz, Jeryl-Ann Asaro, and William Kist share their thoughts on flipped learning.
* Flipped Learning Does Not Just Mean Posting Videos
Rita Platt, Kristina J. Doubet, Eric M. Carbaugh, Sarah Thomas, Troy Cockrum, Sonja Cherry-Paul, and Dana Johansen share advice with teachers exploring flipped learning.
* Make 1:1 Programs About the Learning, Not the Device
Brady E. Venables, Djamal Balbed, Boyd Adolfsson, Joyce Cluess, and Robert Dillon share their ideas on how to implement one-to-one computer programs in schools.
* Guidelines for Successful One-to-One Computer Programs
Anne Jenks, Heather Staker, Larissa Pahomov, and Stephanie Smith Budhai share their suggestions on how schools can successfully implement one-to-one computer programs.
* Tech Helps Us Be a Little Less Common
Kristin Ziemke, Amber Teamann, Erik M. Francis, Shelly Lynn Counsell, Marsha Ratzel, and Richard Byrne share their ideas on the role of tech in meeting the Common Core State Standards.
* The Role of Tech in Common Core
Julie D. Ramsay, Michele L. Haiken, Laura Taddei, Melissa Oliver, and Michael Casey contribute their thoughts on the connections between ed-tech and the Common Core State Standards.
* Tech Tools That Increase Learning
The final post in this series on web tools and apps for learning features ideas from Laura Taddei, Amy Benjamin, Kathleen Neagle Sokolowski, and Carolina Prez Ramrez. I also include comments from readers.
* Tech Tools Can Facilitate Learning in Powerful Ways
Kristina J. Doubet, Eric M. Carbaugh, Jules Csillag, Tahnja Wilson, Rajesh Kripalani, Marsha Ratzel, and Zachary Walker share their suggestions for tech tools to use in the classroom.
* Educators Favorite Tech Tools
Anna Bartosik, Jared Covili, Sam Patterson, Anabel Gonzalez, Richard Byrne, and Russel Tarr share suggestions on how to navigate through the ed-tech jungle.
* Children Need Both Paper Books & Digital Texts
Katie Keier, Stacy Nockowitz, Barbara Paciotti, and many readers share their thoughts on the debate between reading digitally or on paper.
* Reading Digitally vs. Reading Paper
Daniel Willingham, Kristin Ziemke, Lester Laminack, and Kimberly Carraway explore that topic of reading digitally compared with reading on paper in this post.
* Blended Learning Is the Next Generation of Education
Angel Cintron Jr., Connie Parham, Catlin Tucker, Sheri Edwards, Cheryl Costello, William J. Tolley, and George Station explore what blended learning is and how it can be made most effective.
* Ed-Tech Has Overpromised & Underdelivered
Jon Bergmann, Aaron Sams, Jake Goran, Steven Anderson, Derek Cabrera, and Rebecca Blink contribute their commentaries on the trials and tribulations of using ed-tech.
* Be Patient When Dealing With Ed-Tech Problems
Larissa Pahomov, Anne Jenks, Jared Covili, Billy Krakower, and Heather Staker will share what theyve found to be common ed-tech problems and how to respond to them effectively.
* Start With Goals, Not Tech or Curriculum
Tracey Tokuhama-Espinosa, Pontus Hiort, Rebecca Blink, Leah Cleary, Heather Wolpert-Gawron, and Barbara Blackburn share their ideas on the role of tech in schools.
* Technology in the Classroom Is Simply a Tool
Andrew Miller, Jennifer Orr, Michael Fisher, Cheryl Mizerny, and Travis Phelps discuss which should come firstcurriculum or tech?
* Start With Learning Goals Before Thinking About Tech
Educators Suzie Boss, Ken Halla, Jennifer Gonzalez, Kristina J. Doubet, Eric M. Carbaugh, Heather Staker, Katie Muhtaris, and Kristin Ziemke provide their suggestions on how to balance the use of technology in the classroom.
* Personalized Learning Is Based on Relationships, Not Algorithms
John Spencer, Andrew Miller, Heather Staker, Jeffrey Benson, and Louis Cozolino discuss the definition, and practical impacts, of personalized learning.
* Personalized Learning Is a Partnership With Students
Diana Laufenberg, Allison Zmuda, Pernille Ripp, Barbara Bray, Kathleen McClaskey, and Steven Anderson share their thoughts on what personalized learning looks like in the classroom.
* Ways to Help Students Develop Digital Portfolios
Several educators volunteered to write responses for this postRusul Alrubail, Michael Fisher, Frank Serafini, Kristin Ziemke, Kate Muhtaris, Jeb Schenck, and Joe Rommel.
* With 3D Printers, Youre Only Limited by Your Imagination!
Laura Blankenship, David Malpica, David Thornburg, and Terry Graff have contributed commentaries here.
* Ways to Shrink the Change of Tech & CCSS in Your Classroom
Sonja Cherry-Paul, Dana Johansen, Mike Fisher, Andrew Miller, and Amy Roediger share their advice.
* Slow & Steady Wins the Race for Making Changes in Teaching
Charlene Stone, Jeremy Hyler, and Harry Dickens contribute their suggestions.
* Simply Putting Tech in Front of Students Wont Engage Them
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Urgent need to escape the surveillance technology jungle | Reporters without borders – Reporters sans frontires
Posted: at 1:23 pm
The Pegasus Project investigation has shown that the Pegasus spyware developed by the Israeli company NSO Group is systematically used for surveillance that violates the most fundamental human rights safeguards. Just the number of journalists targeted by this technology nearly 200 confirms the degree to which the surveillance technology sector is escaping regulation.
The Wassenaar Arrangement which is the main multilateral agreement for controlling the exportation of dual-use products and technology and which dates back to 1996 has once again proved largely inadequate and inoperative.
There are many reasons for this, starting with its area of application, which is not limited to surveillance technology and covers all types of dual-use products and technology, and its purpose, which is to regulate them in their entirety, treating them all as one, rather than treating each type separately. Its legal scope is limited and it lacks any independent control mechanism. It groups only 40 countries, which dont include two dual-use exporting countries, Israel and Cyprus. And it functions by consensus, giving each participating government a right of veto, which encourages minimal regulation.
The European Unions 2009 Dual-Use Regulation was finally updated in a laborious process completed in March and is due to take effect in September. Inspired by the Wassenaar Arrangement, and without any influence on exporting states that are not parties to the regulation, it will not suffice to fill the gaps.
The law of the jungle cannot prevail any longer, said Iris de Villars, the head of RSFs Tech Desk. The Pegasus affair must serve as the trigger for adopting a general moratorium on the surveillance technology exports and for starting work on an international regulation worthy of the name.
On 19 July, RSF asked democratic governments to impose an immediate moratorium on the sale of surveillance technology until safeguards have been established to prevent its oppressive use. And on 21 July, RSF urged the Israeli Prime Minister to impose an immediate moratorium on surveillance technology exports until a protective regulatory framework has been established.
The announcement by the head of the Knessets foreign affairs and defence committee on 23 July that a panel was being set up to review export licences was a step in the right direction but nothing indicates that this unilateral review will lead to guarantees that the same will not happen again in the future.
RSF recommends the development of a global legal framework for regulating surveillance technology based on the UN Guiding Principles on Business and Human Rights and providing for adaptation to national legislation.
Legislative reforms are needed in all the countries concerned in order to impose a due diligence requirement as regards human rights on companies that produce and export this technology.
Companies should be required to identify, prevent and mitigate the potential and actual negative effects of their activities and value chain on human rights, and to report publicly and regularly on the obstacles encountered and the measures taken, with the possibility of being held criminally liable if they fail to do so.
Governments should be required to publish at least quarterly information on the surveillance technology export licences they have approved or denied, and to include information about the nature of the equipment, a description of the product, the country of destination, the end user and the final use.
Governments must also improve their capacity to investigate the circumvention of export controls when there are serious grounds for suspecting that human rights violations have been committed using exported surveillance technology.
RSF will join initiatives calling for a moratorium and aimed at beginning work on drafting international regulations of this kind.
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Access to technology is changing the U.S. education system for good – USA TODAY
Posted: at 1:23 pm
Adam Stone| USA TODAY
Prior to COVID-19, the Pleasanton Calif.Unified School District (PUSD) was already issuing a digital device to every middle and high school student. During the pandemic, the district expanded its 1-to-1 policy to all elementary-level students, as well.
Anybody who needed a device got a device, says Patrick Gannon, the districts communications and community engagement coordinator. Thanks to that rapid deployment, We were able to pivot 14,500 students from in-person to remote instruction in the course of a week.
PUSD isnt alone: Around the nation, virtual learning needs spurred rapid adoption of 1-to-1 policies across K-12 education. While the final numbers on device adoption arent in yet, Theres clearly been a huge effort to secure more devices, says Keith Krueger, CEO of the nonprofit Consortium for School Networking.
Going forward, educators say, this broad availability of computers will change the way teachers interact with students, and it will change how kids learn.
In schools with 1-to-1 device programs, students have access to a wider and deeper range of learning resources. It allows the student to pull in information that they might not have been able to access before, Gannon says. In the past, youd go to the library, and depending on whether you were first or last in line, you would get stuck with whatever book was left over. Now, students have the entire internet available to them.
This base of knowledge could have a profound impact, says Steve Langford, chief information officer for Oregons Beaverton School District. Theyre not constrained to just looking something up in a textbook, he says. They can go get real-time information with all of the resources on the internet to help them answer questions or think of new questions to ask.
At North Canton City Schools in Ohio, Director of Technology Kim Nidy says the tools available on a laptop or tablet expand the learning experience. In the past, a student might have been constrained to present a written report. Now they can write it up as a Google document or they can create a slideshow. They can create a PowerPoint or record themselves, she says. It allows for a lot more creativity.
A 1-to-1 device deployment introduces a learning management system (LMS) as a new means for teachers to interact with students and guide the educational experience.
These management systems are software tools for the administration and delivery of educational courses and development programs.
LMS applications such as Canvas, Schoology and Google Classroom give teachers the power to monitor what students are doing on their devices and to interact with learners outside the classroom.
Now teachers can engage with students to answer a quick question in the evening, Langford says. Its a way to move the classroom outside of their physical space and time.
Teachers can use a LMS to post learning materials such as online links and videos. They can also track each individual students efforts. Maybe the student has veered off. Now the teachers can go in and add a comment in real time, Nidy says.
A LMS also can be a collaborative space where students share comments and work on projects together.
Those side conversations in the past have been considered cheating, Gannon says. When you bring that into the LMS, then those discussions become evidence of collaboration, which is one of the key skills we want to prioritize among the students. In that way, 1-to-1 gives school systems a way to begin to change that mindset.
Educators say the 1-to-1 device policies also support educators efforts to teach each child at his or her own pace, a practice known as differentiation.
Supported by 1-to-1 computing, Teachers are able to see where students are at and address them where they are, versus teaching to just one proficiency level, Langford says. For students who need extra support, teachers now can access that digital content and provide interventions for them, while for students who maybe have already mastered the content, the teacher has new tools tokeep their interest.
With a 1-to-1 environment, you can allow for different pacing, Nidy says. Instead of saying, everybody has to do this worksheet, or everybody has to do this poster, the teacher can offer kids a creative outlet to take what theyre learning and show that learning in the way that is most meaningful to them.
As 1-to-1 becomes more common, school systems will have to address some potential hurdles in order to make the most effective use of their technology investments. Personal computers arent a one-time expense. Langford, for instance, cycles out his districts devices every four years, and he suggests school districts will have to budget for repairs and replacements as they look to go long term with 1-to-1 computing.
School districts also will need to ensure that students have some guidance around the appropriate use of school-issued devices. As many parents know, digital access can be a Pandoras box of distraction.
Schools and families need to be aware of the impact of this technology, Langford says. Parents need to be able to see the signs of technology addiction when a student is in hour six of YouTube videos that arent connected to their learning. They may need help from the schools in addressing that.
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UAMS Cardiology Team Clears 95%-blocked Artery With New Shockwave Technology – UAMS News
Posted: at 1:23 pm
July 27, 2021 | A new technology that uses sonic waves to blast calcium deposits out of arteries is now available at the University of Arkansas for Medical Sciences (UAMS).
The treatment option for advanced heart disease debuted in central Arkansas on June 16 when UAMS cardiologist Subhi AlAref, M.D., used it to successfully open and clear a patients severely calcified stent.
Stents are tiny tubes that can be inserted into narrowed arteries that have been pried open with balloons, to keep them open and restore blood flow. But as heart disease progresses, bone-like calcium deposits can form, causing rigidity in the artery and increasing the risk of complications such as perforation of the arterial wall while trying to insert or open a stent.
A new treatment called intravascular lithotripsy (IVL) allows doctors to shatter the calcium using sonic pressure waves, or shockwave technology, delivered through a catheter mounted on a balloon. The waves pass through soft arterial tissue and create a series of micro-fractures in the calcium, allowing the artery to be expanded at low pressure and a stent to be safely implanted to improve blood flow, with minimal trauma to normal arterial tissue.
The technology is a novel application of lithotripsy, which has been used for decades to safely break up kidney stones.
Before it was available, doctors had to use small drills to crack the hardened calcium and open the artery, but that procedure, known as atherectomy, has a steep learning curve, is difficult to perform and can result in serious complications for the patient. In addition to being safer, shockwave therapy also provides much quicker results.
AlAref, an assistant professor in the UAMS College of Medicine Department of Internal Medicine , used the new technology to treat a 70-year-old woman who came to UAMS after repeatedly visiting another hospitals emergency room with complaints of chest pain that were related to the severe calcification of an old stent that was 95% blocked. The woman had been told there were no treatment options available, but the cardiology team at UAMS decided to try to open the old stent using the newly approved shockwave technology.
We ballooned the stent successfully the first time, and the second time we used the shockwave technology to expand the stent even more, in order to treat the calcium that was outside the stent and prevented it from being adequately expanded, AlAref said. We also stented another artery.
The woman has a follow-up visit scheduled but hasnt returned to the emergency room.
The technology was granted a breakthrough device designation by the U.S. Food and Drug Administration prior to its approval in February. The coronary application of the technology has been widely adopted in Europe and since 2018, more than 25,000 patients have undergone a procedure using it, according to Shockwave Medical, a public medical device company headquartered in California whose founders adapted kidney stone lithotripsy for the cardiovascular application.
With this technology, we should be able to treat heavily calcified vessels more easily and hopefully with fewer complications, said Gaurav Dhar, M.D., a cardiologist and professor in the Department of Internal Medicine.
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