Physicists Just Achieved The First-Ever Quantum Teleportation Between Computer Chips – ScienceAlert

As 2019 winds to a close, the journey towards fully realised quantum computing continues: physicists have been able to demonstrate quantum teleportation between two computer chips for the first time.

Put simply, this breakthrough means that information was passed between the chips not by physical electronic connections, but through quantum entanglement by linking two particles across a gap using the principles of quantum physics.

We don't yet understand everything about quantum entanglement (it's the same phenomenon Albert Einstein famously called "spooky action"), but being able to use it to send information between computer chips is significant, even if so far we're confined to a tightly controlled lab environment.

"We were able to demonstrate a high-quality entanglement link across two chips in the lab, where photons on either chip share a single quantum state," explains quantum physicist Dan Llewellynfrom the University of Bristol in the UK.

"Each chip was then fully programmed to perform a range of demonstrations which utilise the entanglement."

Hypothetically, quantum entanglement can work over any distance. Two particles get inextricably linked together, which means looking at one tells us something about the other, wherever it is (in this case, on a separate computer chip).

To achieve their result, the team generated pairs of entangled photons, encoding quantum information in a way that ensured low levels of interference and high levels of accuracy. Up to four qubits the quantum equivalent of classical computing bits were linked together.

"The flagship demonstration was a two-chip teleportation experiment, whereby the individual quantum state of a particle is transmitted across the two chips after a quantum measurement is performed," says Llewellyn.

"This measurement utilises the strange behaviour of quantum physics, which simultaneously collapses the entanglement link and transfers the particle state to another particle already on the receiver chip."

The researchers were then able to run experiments in which the fidelity reached 91 percent as in, almost all the information was accurately transmitted and logged.

Scientists are learning more and more about how quantum entanglement works, but for now it's very hard to control. It's not something you can install inside a laptop: you need a lot of bulky, expensive scientific equipment to get it working.

But the hope is that advances in the lab, such as this one, might one day lead to advances in computing that everyone can take advantage of super-powerful processing power and a next-level internet with built-in hacking protections.

The low data loss and high stability of the teleportation, as well as the high level of control that the scientists were able to get over their experiments, are all promising signs in terms of follow-up research.

It's also a useful study for efforts to get quantum physics working with the silicon chip (Si-chip) tech used in today's computers, and the complementary metal-oxide-semiconductor (CMOS) techniques used to make those chips.

"In the future, a single Si-chip integration of quantum photonic devices and classical electronic controls will open the door for fully chip-based CMOS-compatible quantum communication and information processing networks," says quantum physicist Jianwei Wang, from Peking University in China.

The research has been published in Nature Physics.

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Physicists Just Achieved The First-Ever Quantum Teleportation Between Computer Chips - ScienceAlert

Quantum Supremacy and the Regulation of Quantum Technologies – The Regulatory Review

Advancing technology requires regulators to act quickly to develop standards and defenses against cyberattacks.

After a false-start in September, Google provided the first peer-reviewed evidence of quantum supremacy a month later in the prestigious journal Nature. The announcement was the latest crescendo in the development of quantum computersemerging technologies that can efficiently solve complicated computational problems with hardware that takes advantage of quantum mechanics.

With data privacy and national security at stake, agile and adaptive regulatory strategies are needed to manage the risks of fast-approaching quantum computers without thwarting their potential benefits.

Although classical computers use binary bits to perform calculations, devices under development, like Googles, use qubits that are not limited to 1s and 0s when they process information. Instead, through phenomena like superposition and entanglement, groups of qubits can have exponentially more power by not merely being on or off, but also being some blend of on and off at the same time. With the right programming and hardware design, quantum computers should be able to work smarter than classical computers when making sense of large datasets.

Demonstrating that a quantum computer can actually solve problems even supercomputers cannot handleso called quantum supremacy (or, preferably, the less violent quantum advantage)has long been an envied goal in the quantum engineering field. But, as the CEO of leading quantum technology firm Rigetti noted, practical quantum devices will create new risks and could lead to unanticipated policy challenges.

Setting risks aside, quantum technologies do promise exciting near-term benefits. Quantum advantage highlights the raw power of these devices to work with big datasets and could be used to advance drug discovery, business analytics, artificial intelligence, traffic control, and more. Although IBM has moved to cast doubt on the achievement, Googles publication claims the team is only one creative algorithm away from valuable near-term applications. The world could almost be at the dawn of an era of quantum computers with day-to-day applications.

But practical quantum computers could also rip through current cybersecurity infrastructure. The abilities of these emerging technologies create significant national security concerns, both in the United States and for other countries investing heavily in quantum technologies, such as China.

Quantum cyberattacks could also put private or sensitive information at risk or expose corporate intellectual property and trade secrets.

To be sure, one developer showing quantum advantage for a single task does not mean the quantum cyberattacks will start tomorrow, so panic should be avoided. But, despite the hype, attaining quantum advantage does signal an approaching time when these attacks could become possible.

Achieving quantum advantage or supremacy is bittersweet, then, given the potential for both benefit and harm. Even though this is the first report of the achievement in the United States, it is not impossible that this goal has been reached elsewhere or will be soon. With this understanding, what should the regulatory and policy responses look like to manage novel risks while still encouraging benefits?

Three strategies can help prepare for the coming wave of quantum computers without undermining innovation, drawing on technical standards and codes of conduct as regulatory tools.

First, private standards will be useful for responding to quantum concerns. These voluntary, technical standards can give government and industry a common language to speak by creating agreed-upon definitions and ways of measuring quantum computers performance capabilities. Technical standards can therefore facilitate policy conversations about how powerful quantum computers really are and what types of risks are realistic and deserve policymakers attention.

The Institute of Electrical and Electronics Engineers Standards Association (IEEE) is currently working on setting standards for terminology and performance metrics in quantum computing. Given the global authority and reputation of IEEE, these standards could become quite influential when adopted and even be helpful for industry. To get ahead of potential quantum cyberattacks, experts from government, industry, academia, and NGOs should participate in standardization efforts to accelerate this work and add different perspectives to make standards more comprehensive and inclusive.

Second, the quantum computing industry itself can be proactive even without government taking the lead. I argue in a recent paper that, to guide responsible development of these powerful new technologies, quantum computing companies could create codes of conduct todetail best practices and principles for the responsible deployment of quantum computing.

Codes of conduct can show that an emerging industry is trying to be responsible and transparent while publicly setting expectations for good behavior. With concerns that quantum computers might be used for nefarious purposes or fall into the wrong hands, the industry should respond by committing to act responsibly through quantum codesand have a chance to help define what responsibility means in this new area as an added benefit.

Finally, the industry should work to support the development of standards for another technology intended to defend from quantum cyberattacks, called post-quantum cryptography. Quantum computers excel at solving problems that require factoring large numbers, which gets right to the heart of current cybersecurity methods. Post-quantum cryptography tries to counter this strength by creating new types of encryption that quantum computers will be less adept at cracking.

Post-quantum methods still must be fully developed, standardized, and then implemented in critical networkscreating a need for policy and governance efforts to facilitate the transition to a post-quantum world. The National Institute of Standards and Technology has begun to work on post-quantum standards, but these efforts will not finish overnight. The potential urgency of practical quantum computers means that work to standardize and advance post-quantum cryptographic methods deserves greater attention and resources from both the public and private sectors, as well as expert groups and non-governmental organizations.

Googles announcement that it has reached quantum advantage or supremacy is a great achievement in the long push to develop pragmatic quantum computers that can benefit society. But even though this announcement does not mean cybersecurity ends tomorrow, the security and privacy risks of quantum computers deserve policymakers prompt attention.

Responding to these challenges with public and private standards and codes of conduct should promote responsibility, security, and growth in the development of emerging quantum technologies.

Walter G. Johnson, a J.D. candidate and research assistant at the Sandra Day OConnor College of Law at Arizona State University, where he also holds a masters degree in science and technology policy.

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Quantum Supremacy and the Regulation of Quantum Technologies - The Regulatory Review

20 technologies that could change your life in the next decade – Economic Times

The decade thats knocking on our doors now the 2020s is likely to be a time when science fiction manifests itself in our homes and roads and skies as viable, everyday technologies. Cars that can drive themselves. Meat that is derived from plants. Robots that can be fantastic companions both in bed and outside.

Implanting kidneys that can be 3-D printed using your own biomaterial. Using gene editing to eradicate diseases, increase crop yield or fix genetic disorders in human beings. Inserting a swarm of nanobots that can cruise through your blood stream and monitor parameters or unblock arteries. Zipping between Delhi and New York on a hypersonic jet. All of this is likely to become possible or substantially closer to becoming a reality in the next 10 years.

Ideas that have been the staple of science fiction for decades artificial intelligence, universal translators, sex robots, autonomous cars, gene editing and quantum computing are at the cusp of maturity now. Many are ready to move out of labs and enter the mainstream. Expect the next decade to witness breakout years for the world of technology.

Read on:

The 2020s: A new decade promising miraculous tech innovations

Universal translators: End of language barrier

Climate interventions: Clearing the air from carbon

Personalised learning: Pedagogy gets a reboot with AI

Made in a Printer: 3-D printing going to be a new reality

Digital money: End of cash is near, cashless currencies are in vogue

Singularity: An era where machines will out-think human

Mach militaries: Redefining warfare in the 2020

5G & Beyond: Ushering a truly connected world

Technology: Solving the problem of clean water

Quantum computing : Beyond the power of classical computing

Nanotechnology: From science fiction to reality

Power Saver: Energy-storage may be the key to maximise power generation

Secret code: Gene editing could prove to be a game-changer

Love in the time of Robots: The rise of sexbots and artificial human beings

Wheels of the future: Flying cars, hyperloops and e-highways will transform how people travel

New skies, old fears: The good, bad& ugly of drones

Artificial creativity: Computer programs could soon churn out books, movies and music

Meat alternatives: Alternative meat market is expected to grow 10 times by 2029

Intelligent robots & cyborg warriors will lead the charge in battle

Why we first need to focus on the ethical challenges of artificial intelligence

It's time to reflect honestly on our motivations for innovation

India's vital role in new space age

Plastic waste: Environment-friendly packaging technologies will gain traction

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20 technologies that could change your life in the next decade - Economic Times

5 open source innovation predictions for the 2020s – TechRepublic

IBM's CTO of Open Technology also looks back at the innovations of the past decade.

Open source played a significant role in software development over the past decade from containers to microservices, blockchain and serverless.

Chris Ferris, chief technology officer of Open Technology at IBM, discusses some of the open source trends from the past decade and what to expect in 2020 and beyond.

SEE: Deploying containers: Six critical concepts (TechRepublic)

The concepts of containers and microservices were merely concepts before 2010, Ferris said. Then Docker launched in 2013, planting the early seeds of the container industry.

At the same time, microservices and the technologies to make them possible were borne in open source through the Netflix OSS project.

Docker went on to become one of the most influential technologies of the 2010s, giving rise to a myriad of new open source projects, including Kubernetes, which launched in 2015.

Today, he noted, Kubernetes is the largest open source project on the planet. Companies are using the platform to transform monolithic application architectures, embracing containerized microservices that are supported by service mesh capabilities of projects such as Istio.

"In the next decade, we anticipate that open source projects such as Istio, Kubernetes and OKD will focus on making containers and microservices smaller and faster to serve the needs of cloud-native development and to reduce the container's attack surface," Ferris said.

OKD is the open source version of Red Hat's OpenShift platform. "Keep an eye on unikernels (executable images that contain system libraries, a language runtime, and necessary applications), which may also gain traction thanks to the open source communities around them."

AWS Lambda was released in 2014 and put all the PaaS services on notice. Lambda's release was followed by IBM OpenWhisk (which became Apache OpenWhisk), among others, in 2016. Both open source, distributed serverless platforms execute functions in response to events at any scale, Ferris said.

Kubernetes gained prominence in the latter part of the decade, fueling the desire to extend Kubernetes with capabilities that would enable serverless. This gave rise to Knative in 2018. Now Knative has split into multiple open source projects including Tekton, each with their own set of innovations, he said.

In the next few years, Ferris said we can expect to see containers get smaller, faster. "The potential exists to have an environment that can run containers at very little cost, instantaneously,'' pushing the boundaries of serverless platforms, he said.

IBM Watson made a huge splash when it appeared on "Jeopardy!" in 2011, bringing artificial intelligence into the mainstream. Now, Ferris noted, AI is part of our everyday lives and we interact with Siri and Alexa daily, talk with customer service chatbots regularly, use facial recognition to unlock our gadgets, and are nearing the advent of fully autonomous self-driving cars.

AI and machine learning have powered these innovations and many of the AI advancements came about thanks to open source projects such as TensorFlow and PyTorch, which launched in 2015 and 2016, respectively.

In the next decade, Ferris stressed the importance of not just making AI smarter and more accessible, but also more trustworthy. This will ensure that AI systems make decisions in a fair manner, aren't vulnerable to tampering, and can be explained, he said.

Open source is the key for building this trust into AI. Projects like the Adversarial Robustness 360 Toolkit, AI Fairness 360 Open Source Toolkit, and AI Explainability 360 Open Source Toolkit were created to ensure that trust is built into these systems from the beginning, he said.

Expect to see these projects and others from the Linux Foundation AI such as the ONNX project drive the significant innovation related to trusted AI in the future. The Linux Foundation AI provides a vendor-neutral interchange format for deep learning and machine learning.

In 2008, the pseudonymous Satoshi Nakamoto published his now famous paper on bitcoin, which introduced the concept of a blockchain network, whose purpose was to be a decentralized cryptocurrency platform.

That innovation made people start to wonder about different ways that the blockchain concepts and technology might be applied in non-cryptocurrency use cases in asset management, supply chains, healthcare, and identity, among others, Ferris said.

In 2015, IBM contributed its Open Blockchain project to the newly established Hyperledger organization, founded to develop open source blockchain technology for the enterprise. That contribution launched what has arguably become one of the two or three most popular blockchain frameworks: Hyperledger Fabric, he said.

While blockchain's initial uses were confined to cryptocurrency, open source engagement around Hyperledger and Ethereum has expanded the possibilities for how this technology is used.

In the enterprise, different approaches are being explored not only to enhance privacy but also to build a collection of nodes required to achieve confirmation on a transaction with trust almost all in open source, he said.

There has been lots of buzz around the promise of quantum computing, and although an app with a "quantum advantage" hasn't been developed yet, the ability for developers to start using quantum processors is growing and will continue to evolve in the next decade, Ferris said.

IBM's open source Qiskit software framework, released in 2016, lets developers code in Python on real quantum hardware for systems around research, education, business, and even games.

"The possibilities for how quantum computing will solve problems and interact with today's technology seem endless quantum computing could impact a wide range of domains, such as chemistry, finance, artificial intelligence, and others," he said.For that to happen will require a "significant hardware environment," Ferris said.

Open source is the best mechanism to bring about these changes, he maintained. That is what spawned ideas like microsystems, which grew out of the virtualization space, and Knative from Kubernetes.

"That wouldn't have happened in the closed source space, so it's a matter of everyone building up on everyone else's successes and someone coming along and saying, 'Here's a better idea,'" he said.

Working together, developers have the power to change entire industries, Ferris believes. "I can't think of anything that's been developed exclusively in closed source that didn't eventually come out in open source."

You don't want to miss our tips, tutorials, and commentary on the Linux OS and open source applications. Delivered Tuesdays

Image: Ildo Frazao, Getty Images/iStockphoto

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5 open source innovation predictions for the 2020s - TechRepublic

Donna Strickland appointed to Order of Canada – University of Rochester

December 30, 2019

University of Rochesteralumna Donna Strickland 89 (PhD), who shared the 2018 Nobel Prize in Physics, has been appointed to theOrder of Canada.

The award recognizes individuals who have made extraordinary contributions to the nation. Strickland was appointed a Companion of the Order, the highest of three levels of the award. There can be no more than 165 living companions at any time.

The professor of physics at the University of Waterloo in Ontario, Canada, is being recognized for her contributions to optical physics and for her innovative developments in ultra-fast optical science.

I feel so proud and privileged to be Canadian and I am thrilled to receive this recognition from my country, Strickland toldCBC news. It is an exceptional honor for me to be named a companion of the Order of Canada. This award means a great deal to me.

Strickland and Grard Mourou, former engineering professor and scientist at the University of Rochesters Laboratory for Laser Energetics (LLE), were together recognized with the 2018 Nobel Prize for revolutionizing the field of high-intensity laser physics.

Mourou was Stricklands PhD advisor during the time they pioneered chirped-pulse amplification. Known as CPA, this work was the basis of Stricklands PhD in optics dissertation.

Today, CPA has applications in corrective eye surgeries and other surgical procedures, data storage, and quantum computing.

Tags: alumni, announcement, Institute of Optics, Laboratory for Laser Energetics, Nobel Prize

Category: University News

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Donna Strickland appointed to Order of Canada - University of Rochester

Quantum Computing Breakthrough: Silicon Qubits Interact at Long-Distance – SciTechDaily

Researchers at Princeton University have made an important step forward in the quest to build a quantum computer using silicon components, which are prized for their low cost and versatility compared to the hardware in todays quantum computers. The team showed that a silicon-spin quantum bit (shown in the box) can communicate with another quantum bit located a significant distance away on a computer chip. The feat could enable connections between multiple quantum bits to perform complex calculations. Credit: Felix Borjans, Princeton University

Princeton scientists demonstrate that two silicon quantum bits can communicate across relatively long distances in a turning point for the technology.

Imagine a world where people could only talk to their next-door neighbor, and messages must be passed house to house to reach far destinations.

Until now, this has been the situation for the bits of hardware that make up a silicon quantum computer, a type of quantum computer with the potential to be cheaper and more versatile than todays versions.

Now a team based at Princeton University has overcome this limitation and demonstrated that two quantum-computing components, known as silicon spin qubits, can interact even when spaced relatively far apart on a computer chip. The study was published today (December 25, 2019) in the journal Nature.

The ability to transmit messages across this distance on a silicon chip unlocks new capabilities for our quantum hardware, said Jason Petta, the Eugene Higgins Professor of Physics at Princeton and leader of the study. The eventual goal is to have multiple quantum bits arranged in a two-dimensional grid that can perform even more complex calculations. The study should help in the long term to improve communication of qubits on a chip as well as from one chip to another.

Quantum computers have the potential to tackle challenges beyond the capabilities of everyday computers, such as factoring large numbers. A quantum bit, or qubit, can process far more information than an everyday computer bit because, whereas each classical computer bit can have a value of 0 or 1, a quantum bit can represent a range of values between 0 and 1 simultaneously.

To realize quantum computings promise, these futuristic computers will require tens of thousands of qubits that can communicate with each other. Todays prototype quantum computers from Google, IBM and other companies contain tens of qubits made from a technology involving superconducting circuits, but many technologists view silicon-based qubits as more promising in the long run.

Silicon spin qubits have several advantages over superconducting qubits. The silicon spin qubits retain their quantum state longer than competing qubit technologies. The widespread use of silicon for everyday computers means that silicon-based qubits could be manufactured at low cost.

The challenge stems in part from the fact that silicon spin qubits are made from single electrons and are extremely small.

The wiring or interconnects between multiple qubits is the biggest challenge towards a large scale quantum computer, said James Clarke, director of quantum hardware at Intel, whose team is building silicon qubits using using Intels advanced manufacturing line, and who was not involved in the study. Jason Pettas team has done great work toward proving that spin qubits can be coupled at long distances.

To accomplish this, the Princeton team connected the qubits via a wire that carries light in a manner analogous to the fiber optic wires that deliver internet signals to homes. In this case, however, the wire is actually a narrow cavity containing a single particle of light, or photon, that picks up the message from one qubit and transmits it to the next qubit.

The two qubits were located about half a centimeter, or about the length of a grain of rice, apart. To put that in perspective, if each qubit were the size of a house, the qubit would be able to send a message to another qubit located 750 miles away.

The key step forward was finding a way to get the qubits and the photon to speak the same language by tuning all three to vibrate at the same frequency. The team succeeded in tuning both qubits independently of each other while still coupling them to the photon. Previously the devices architecture permitted coupling of only one qubit to the photon at a time.

You have to balance the qubit energies on both sides of the chip with the photon energy to make all three elements talk to each other, said Felix Borjans, a graduate student and first author on the study. This was the really challenging part of the work.

Each qubit is composed of a single electron trapped in a tiny chamber called a double quantum dot. Electrons possess a property known as spin, which can point up or down in a manner analogous to a compass needle that points north or south. By zapping the electron with a microwave field, the researchers can flip the spin up or down to assign the qubit a quantum state of 1 or 0.

This is the first demonstration of entangling electron spins in silicon separated by distances much larger than the devices housing those spins, said Thaddeus Ladd, senior scientist at HRL Laboratories and a collaborator on the project. Not too long ago, there was doubt as to whether this was possible, due to the conflicting requirements of coupling spins to microwaves and avoiding the effects of noisy charges moving in silicon-based devices. This is an important proof-of-possibility for silicon qubits because it adds substantial flexibility in how to wire those qubits and how to lay them out geometrically in future silicon-based quantum microchips.'

The communication between two distant silicon-based qubits devices builds on previous work by the Petta research team. In a 2010 paper in the journal Science, the team showed it is possible to trap single electrons in quantum wells. In the journal Nature in 2012, the team reported the transfer of quantum information from electron spins in nanowires to microwave-frequency photons, and in 2016 in Science they demonstrated the ability to transmit information from a silicon-based charge qubit to a photon. They demonstrated nearest-neighbor trading of information in qubits in 2017 in Science. And the team showed in 2018 in Nature that a silicon spin qubit could exchange information with a photon.

Jelena Vuckovic, professor of electrical engineering and the Jensen Huang Professor in Global Leadership at Stanford University, who was not involved in the study, commented: Demonstration of long-range interactions between qubits is crucial for further development of quantum technologies such as modular quantum computers and quantum networks. This exciting result from Jason Pettas team is an important milestone towards this goal, as it demonstrates non-local interaction between two electron spins separated by more than 4 millimeters, mediated by a microwave photon. Moreover, to build this quantum circuit, the team employed silicon and germanium materials heavily used in the semiconductor industry.

###

Reference: Resonant microwave-mediated interactions between distant electron spins by F. Borjans, X. G. Croot, X. Mi, M. J. Gullans and J. R. Petta, 25 December 2019, Nature.DOI: 10.1038/s41586-019-1867-y

In addition to Borjans and Petta, the following contributed to the study: Xanthe Croot, a Dicke postdoctoral fellow; associate research scholar Michael Gullans; and Xiao Mi, who earned his Ph.D. at Princeton in Pettas group and is now a research scientist at Google.

The study was funded by Army Research Office (grant W911NF-15-1-0149) and the Gordon and Betty Moore Foundations EPiQS Initiative (grant GBMF4535).

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Quantum Computing Breakthrough: Silicon Qubits Interact at Long-Distance - SciTechDaily

How This Breakthrough Makes Silicon-Based Qubit Chips The Future of Quantum Computing – Analytics India Magazine

Quantum computing has come a long way since its first introduction in the 1980s. Researchers have always been on a lookout for a better way to enhance the ability of quantum computing systems, whether it is in making it cheaper or the quest of making the present quantum computers last longer. With the latest technological advancements in the world of quantum computing which superconducting bits, a new way of improving the world of silicon quantum computing has come to light, making use of the silicon spin qubits for better communication.

Until now, the communication between different qubits was relatively slow. It could be done by passing the messages to the next bit to get the communication over to another chip at a relatively far distance.

Now, researches at Princeton University have explored the idea of two quantum computing silicon components known as silicon spin qubits interacting in a relatively spaced environment, that is with a relatively large distance between them. The study was presented in the journal Nature on December 25, 2019.

The silicon quantum spin qubits give the ability to the quantum hardware to interact and transmit messages across a certain distance which will provide the hardware new capabilities. With transmitting signals over a distance, multiple quantum bits can be arranged in two-dimensional grids that can perform more complex calculations than the existing hardware of quantum computers can do. This study will help in better communications of qubits not only on a chip but also from one to another, which will have a massive impact on the speed.

The computers require as many qubits as possible to communicate effectively with each other to take the full advantage of quantum computings capabilities. The quantum computer that is used by Google and IBM contains around 50 qubits which make use of superconducting circuits. Many researchers believe that silicon-based qubit chips are the future in quantum computing in the long run.

The quantum state of silicon spin qubits lasts longer than the superconducting qubits, which is one of their significant disadvantages (around five years). In addition to lasting longer, silicon which has a lot of application in everyday computers is cheaper, another advantage over the superconducting qubits because these cost a ton of money. Single qubit will cost around $10,000, and thats before you consider research and development costs. With these costs in mind a universal quantum computer hardware alone will be around at least $10bn.

But, silicon spin cubits have their challenges which are part of the fact that they are incredibly small, and by small we mean, these are made out from a single electron. This problem is a huge factor when it comes to establishing an interconnect between multiple qubits when building a large scale computer.

To counter the problem of interconnecting these extremely small silicon spin qubits, the Princeton team connected these qubits with a wire which are similar to the fibre optic (for internet delivery at houses) wires and these wires carry light. This wire contains photon that picks up a message from a single qubit and transmits it the next qubit. To understand this more accurately, if the qubits are placed at a distance of half-centimetre apart from each other for the communication, in real-world, it would be like these qubits are around 750 miles away.

The next step forward for the study was to establish a way of getting qubits and photons to communicate the same language by tuning both the qubits and the photon to the same frequency. Where previously the devices architecture allowed tuning only one qubit to one photon at a time, the team now succeeded in tuning both the qubits independent from each other while still coupling them to the photon.

You have to balance the qubit energies on both sides of the chip with the photon energy to make all three elements talk to each other,

Felix Borjans, a graduate student and first author on the study on what he describes as the challenging part of the work.

The researchers demonstrated entangling of electrons spins in silicon separated by distances more substantial than the device housing, this was a significant development when it comes to wiring these qubits and how to lay them out in silicon-based quantum microchips.

The communication between the distant silicon-based qubits devices builds on the works of Petta research team in 2010 which shows how to trap s single electron in quantum wells and also from works in the journal Nature from the year 2012 (transfer of quantum information from electron spins)

From the paper in Science 2016 (demonstrated the ability to transmit information from a silicon-based charge qubit to a photon), from Science 2017 (nearest-neighbour trading of information in qubits) and 2018 Nature (silicon spin qubit can exchange information with a photon).

This demonstration of interactions between two silicon spin qubits is essential for the further development of quantum tech. This demonstration will help technologies like modular quantum computers and quantum networks. The team has employed silicon and germanium, which is widely available in the market.

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How This Breakthrough Makes Silicon-Based Qubit Chips The Future of Quantum Computing - Analytics India Magazine

Same Plastic That Make Legos Could Also Be The Best Thermal Insulators Used in Quantum Computers – KTLA Los Angeles

If you thought that Legos were the coolest toys on the planet while you were growing up, it turns out that you were right.

Scientists at Lancaster University in England conducted an experimentin which they froze several Lego blocks to the lowest possible temperature, and what they discovered could be useful in the development of quantum computing.

Led by Dr. Dmitry Zmeev, the scientists used a custom-made dilution refrigerator,which the university saysis the most effective refrigerator in the world. The dilution refrigerator at Lancaster University can reach 1.6 millidegrees above absolute zero, or minus 459.67 degrees Fahrenheit (minus 273.15 Celsius). That is 200,000 times colder than room temperature and 2,000 times colder than deep space,according to the university.

The team of scientists placed a Lego figure along with four Lego blocks inside the dilution refrigerator to see if Legos could be a good thermal insulator.

We were trying to find a material that would be a thermal insulator at extremely low temperatures, yet would be relatively strong, Zmeev told CNN.

The Lego blocks looked like good candidates: the contact area between two blocks clamped together is very small, which prompts poor thermal conduction, yet the resulting structure is very robust. And indeed, our measurements confirmed this.

Legos aremade from ABS plastic, or acrylonitrile butadiene styrene. The plastic is known for its strength and durability. Among its other common uses are keys for computer keyboards.

Thermal insulation is critical to cryogenic engineering and low-temperature physics, but the materials for these applications are extremely expensive and are difficult to mold.

The very instrument the experiment was conducted with could benefit from its results. By allowing for a potentially more cost-effective solution to producing dilution refrigerators, using ABS as a thermal insulator in those refrigerators could aid in the development of quantum computing.

Very low temperatures provided by the dilution refrigerator are necessary for the operation of existing quantum computers, such as Googles, to cool down their qubits, Zmeev said.

A qubit is the basic unit of quantum information in quantum computing.

While its unlikely that Lego blocks per se will be used as a part of a quantum computer, weve found the right direction for creating cheap thermal insulators: 3D printing, Zmeev said. Lego is made from ABS plastic and one can also create ABS structures simply by 3D printing them. We are currently studying the properties of such 3D printed structures at ultralow temperatures close to absolute zero.

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Same Plastic That Make Legos Could Also Be The Best Thermal Insulators Used in Quantum Computers - KTLA Los Angeles

Information teleported between two computer chips for the first time – New Atlas

Scientists at the University of Bristol and the Technical University of Denmark have achieved quantum teleportation between two computer chips for the first time. The team managed to send information from one chip to another instantly without them being physically or electronically connected, in a feat that opens the door for quantum computers and quantum internet.

This kind of teleportation is made possible by a phenomenon called quantum entanglement, where two particles become so entwined with each other that they can communicate over long distances. Changing the properties of one particle will cause the other to instantly change too, no matter how much space separates the two of them. In essence, information is being teleported between them.

Hypothetically, theres no limit to the distance over which quantum teleportation can operate and that raises some strange implications that puzzled even Einstein himself. Our current understanding of physics says that nothing can travel faster than the speed of light, and yet, with quantum teleportation, information appears to break that speed limit. Einstein dubbed it spooky action at a distance.

Harnessing this phenomenon could clearly be beneficial, and the new study helps bring that closer to reality. The team generated pairs of entangled photons on the chips, and then made a quantum measurement of one. This observation changes the state of the photon, and those changes are then instantly applied to the partner photon in the other chip.

We were able to demonstrate a high-quality entanglement link across two chips in the lab, where photons on either chip share a single quantum state, says Dan Llewellyn, co-author of the study. Each chip was then fully programmed to perform a range of demonstrations which utilize the entanglement. The flagship demonstration was a two-chip teleportation experiment, whereby the individual quantum state of a particle is transmitted across the two chips after a quantum measurement is performed. This measurement utilizes the strange behavior of quantum physics, which simultaneously collapses the entanglement link and transfers the particle state to another particle already on the receiver chip.

The team reported a teleportation success rate of 91 percent, and managed to perform some other functions that will be important for quantum computing. That includes entanglement swapping (where states can be passed between particles that have never directly interacted via a mediator), and entangling as many as four photons together.

Information has been teleported over much longer distances before first across a room, then 25 km (15.5 mi), then 100 km (62 mi), and eventually over 1,200 km (746 mi) via satellite. Its also been done between different parts of a single computer chip before, but teleporting between two different chips is a major breakthrough for quantum computing.

The research was published in the journal Nature Physics.

Source: University of Bristol

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Information teleported between two computer chips for the first time - New Atlas

From space tourism to robo-surgeries: Investors are betting on the future like there’s no tomorrow – Financial Post

It may be difficult to envision, but there is a potential future be it 10, 20 or even 30 years down the line where humans are able to plan a cozy vacation into space, blast by a series of satellites that now provide them with Internet access and have their most serious illnesses treated by allowing bioengineers to alter their DNA.

Its one possible future that proactive investors, even those in typically reactive institutional settings, have begun to place large and risky bets on becoming a reality.

In April, the Ontario Teachers Pension Plan created a new department called the Teachers Innovation Platform that has a mandate to invest in disruptive tech and made its first big splash in June by backing Elon Musks SpaceX. The pension plan has particular interest in the companys Starlink project, one that aims to fire more than 11,000 satellites into low orbit, interlink them all and have them act as a new provider of Internet connectivity.

For investing ... you want to look 15 to 20 years down the line and say: 'Is this still going to be impacting peoples' lives?

The Canada Pension Plan Investment Board has put a similar emphasis on investing in disruptive technology, announcing in late 2018 that it had made a private investment in Zoox, a California-based company that aims to operate a fleet of robo-taxis. Only months ago, the pension plan bought US$162 million worth of Skyworks Solutions Inc., a semiconductor firm creating chips that will allow the next wave of phones to work in 5G networks.

As for retail investors, theyve likely never had as many options to hedge their portfolio toward the future. The 2019 IPO market offered them even more, bringing a basket of futuristic options to the market, including Beyond Meat Inc., a producer of plant-based meat, and Virgin Galactic Holdings Inc., the latest brainchild of Richard Branson, which is developing spacecraft that may allow for the development of a space tourism sector.

But the investors buying these stocks arent buying them with the hope that theyll hit their peak in 2020.

You have to recognize the world is changing, said Hans Albrecht, the portfolio manager for Horizons ETFs Industry 4.0 fund. Theres nothing wrong in investing in Pokemon cards if theyre hot now or whatever the latest trend may be, but thats a trade. For investing you want to look 15 to 20 years down the line and say: Is this still going to be impacting peoples lives?

It wont be long, Albrecht suspects, before his coffee maker is able to receive signals from his mug that tell it to begin brewing a new serving once hes three-quarters of the way through his first cup in the morning.

If that scenario sounds too futuristic, its one that only scratches the surface, he said. When hes running low on espresso packages, a chip in his pantry keeping track of stock may be able to automatically order more from Amazon, which at that point, may have implemented one-hour shipping, to ensure hell never run out.

Thousands of consumers already have access to smart home technology through Google Home or Amazon.com Inc.s Alexa, which allow for the linking of devices such as thermostats, lights and televisions. Its advancements in artificial intelligence and edge computing, which will effectively replace the cloud and allow for individual items in a home to process data, that will bring this technology into the future.

Figuring out how to play technology like edge computing which may very well become mainstream in a decade isnt exactly simple.

Investors will have two options: they can bet on the end point user of the technology in Albrechts coffee scenario, that would mean investing in the company that produces the coffee maker or they can look to the firms that are developing the components that power it.

Albrecht leans towards the latter, suggesting that there would be far too much competition among the end point companies while there would only be a handful of leaders on the components side. A company like Analog Devices Inc., may play a central role in the implementation of that technology because its building everything from the sensors and their networks to processors.

Investors may be able to apply similar logic with 5G, according to CIBC World Markets tech strategist Todd Coupland.

Consumers will likely only begin to see the wide rollout of 5G, which would enable devices to operate at speeds that as much as 100 times faster than the current 4G tech, in 2020. That means that it might be a bit early to invest in device producers such as Apple Inc. or Samsung Electronics Co Ltd. for that exposure. Instead, Coupland suggested investors eye a company like Keysight Technologies Inc. which builds the equipment that carriers have been using to test out their services ahead of launch.

Goldman Sachs expects 50 million to 120 million 5G devices to be active in 2020 and if that should be the case, components manufacturers in Qualcomm Inc. and Marvell Technology Group Ltd. may warrant attention as would providers such as Nokia Ovj, which already has 50 deals in place to install its radio access equipment, AirScale, around the world. The equipment supports multiple frequencies and allows for a quick transition over to 5G.

That list doesnt include the Canadian telcos and for good reason.

In Canada, Rogers and Bell, their attitude is: See how it goes in the U.S. and well be at least one year behind, Coupland said.

5Gs full potential likely wont be reached for a decade, he said, and the futuristic possibilities it opens up will likely only be reached in the second half. When combined with the power of quantum computing, managing a fleet of self-driving cars and, who knows, removing traffic lights from the streets becomes a possibility, according to Christian Weedbrook, the CEO of Toronto-based quantum computing company Xanadu.

Weedbrooks company has gained the attention of Georgian Partners, a private-sector venture capital firm that has invested hundreds of millions of dollars in upstart Canadian tech companies.

What makes quantum computing, a draw for Jason Brenier, Georgians vice-president of strategy, is its ability to solve previously unsolveable problems.

Weedbrook imagines a future where quantum computers control hundreds of autonomous vehicles for Uber Inc. or Lyft Inc. and provide each individual car with the fastest route to its destination, analyzing traffic, time a trip perfectly so that red lights can be mostly or completely avoided, and in the case of a pool scenario, figure out how to do that with multiple stops.

Investing in early stage technology comes with its challenges. Because Georgian focuses on private investments, there is no stock performance to point to and not much in the way of fundamentals to rely on.

Many of these tech companies that are seeking funding from the firm may show promise but wont pan out in the future. Brenier knows this and says thats one of the reasons why Georgian has its own scientists on staff.

Instead of making blind bets on the future, Georgian turns to its applied research and development team to identify new opportunities based on new academic research and to even conduct their own in order to determine whether a new idea is actually viable.

That gives us some unique insight into how some of these things are taking off, how practical they are from an investment perspective and determining the timing of some of them, Brenier said.

The Georgian team is futurist, but theres still a limit on how far in advance they want to support a new wave of tech. We dont want to work on things that take 20 years to make a breakthrough, Brenier said.

Where breakthroughs may be even more rare for futurist investors, but the potential returns all the sweeter is in health care. The possibilities here, especially when tech plays a part of the equation, appear to be boundless.

Albrecht sees the potential in robots being able to perform surgery on humans. The portfolio manager highlighted Intuitive Surgical Inc. and its da Vinci Surgical System as an example of how this is already occurring. Through a console that offers them a 3D view of the surface area theyll be operating on, surgeons can use controllers to perform procedure with four robotic arms that offer a greater range of motion than human limbs.

Intuitive doesnt just sell the machines, it sells the accessories like scalpels which are replaceable and need to be repeatedly ordered. So the more da Vinci units it sells, the more it opens itself up for further gains to its bottom line through accessory sales.

The next step, Albrecht said, is for this technology to allow surgeons to perform surgeries around the world remotely. After thats accomplished, humans may be removed from the equation altogether with AI.

You take the smartest doctors in the world and they might just have the slightest tremor in their hand and might not get it perfect, but a machine will come as close to that as possible, he said.

Heathcare now makes up about a quarter of the CIBC Global Technology Fund, which is co-managed by Michel Marszal, who has a particular interest in gene therapy.

The technology may still be in development, but Marszal said scientists will soon be able to treat certain conditions, specifically those that plague humans as a result of mutated genes, by biologically engineering new sequences to replace them.

Take haemophilia, a condition that reduces the ability of a persons blood to clot. Treating haemophilia A, which is caused due to a deficiency of a protein called factor VII, may soon be possible by removing cells from the patient, biologically engineering gene sequences with the protein in them and reinserting them.

Gilead Sciences Inc., a company that is in Marszals mutual fund, is working on gene therapy that might even be able to fight cancer. According to Marszal, the process involves removing immune cells from a human body and genetically modify them so that they become supercharged and are better positioned to fight cancer.

The returns on investment in successful therapies are extremely high, Marszal said. Thats really the next decade or 25 years in medicine.

Thinking that far ahead may be difficult for the average investor, who is often concerned with year-end returns. But it might be worth stopping as some futurists do, even during a quiet moment like a morning coffee, to consider just how different the world will look in a decade and perhaps selfishly, how theres profit to be made from it.

Email: vferreira@nationalpost.com | Twitter:

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From space tourism to robo-surgeries: Investors are betting on the future like there's no tomorrow - Financial Post