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Quantum computing

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24.06.2022
21:40 ScienceDaily.com Quantum network nodes with warm atoms

Communication networks need nodes at which information is processed or rerouted. Physicists have now developed a network node for quantum communication networks that can store single photons in a vapor cell and pass them on later.

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23.06.2022
00:13 Phys.org Researchers investigate intricacies in superconductors with hopes to support quantum computer development

Ryan Day studies superconductors. Materials that conduct electricity perfectly, losing no energy to heat and resistance. Specifically, the University of California, Berkeley scientist studies how superconductors can coexist with their opposites; insulating materials that stop the flow of electrons.

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22.06.2022
19:20 ScienceDaily.com Nanostructured surfaces for future quantum computer chips

Quantum computers are one of the key future technologies of the 21st century. Researchers have developed a new technology for manipulating light that can be used as a basis for future optical quantum computers.

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20.06.2022
16:33 Phys.org The realization of measurement induced quantum phases on a trapped-ion quantum computer

Trapped-ion quantum computers are quantum devices in which trapped ions vibrate together and are fully isolated from the external environment. These computers can be particularly useful for investigating and realizing various quantum physics states.

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15.06.2022
18:46 Nature.com (news) Superconducting-qubit readout via low-backaction electro-optic transduction

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18:10 Nature.Com Superconducting-qubit readout via low-backaction electro-optic transduction

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18:03 Phys.org Physicists make leaps in reading out qubits with laser light

Qubits are a basic building block for quantum computers, but they're also notoriously fragile—tricky to observe without erasing their information in the process. Now, new research from the University of Colorado Boulder and the National Institute of Standards and Technology (NIST) could be a leap forward for handling qubits with a light touch.

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02:20 ScienceDaily.com Quantum computer programming basics

For would-be quantum programmers scratching their heads over how to jump into the game as quantum computers proliferate and become publicly accessible, a new beginner's guide provides a thorough introduction to quantum algorithms and their implementation on existing hardware. Deep-diving guide explains the basics, surveys major quantum algorithms and steps through implementing them on publicly available quantum computers.

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11.06.2022
14:26 Space.com 'Time crystals' work around laws of physics to offer new era of quantum computing

Touching two time crystals together has created an important building block for a quantum computer.

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10.06.2022
17:23 Phys.org Theory suggests quantum computers should be exponentially faster on some learning tasks than classical machines

A team of researchers affiliated with multiple institutions in the U.S., including Google Quantum AI, and a colleague in Australia, has developed a theory suggesting that quantum computers should be exponentially faster on some learning tasks than classical machines. In their paper published in the journal Science, the group describes their theory and results when tested on Google's Sycamore quantum computer. Vedran Dunjko with Leiden University City has published a Perspective piece in the same journal issue outlining the idea behind combining quantum computing with machine learning to provide a new level of computer-based learning systems.

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17:23 Phys.org Glimpses of quantum computing phase changes show researchers the tipping point

Researchers at Duke University and the University of Maryland have used the frequency of measurements on a quantum computer to get a glimpse into the quantum phenomena of phase changes—something analogous to water turning to steam.

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16:20 NewScientist.Com UK military investigating quantum computers for battlefield tanks

The UK's Ministry of Defence has bought a quantum computer that doesn't require bulky cooling equipment, meaning it could one day be installed on military hardware such as tanks

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09.06.2022
22:30 NewScientist.Com Quantum computers proved to have ‘quantum advantage’ on some tasks

Not only do quantum computers have the edge over classical computers on some tasks, but they are also exponentially faster, according to a new mathematical proof

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18:30 NewScientist.Com Quantum computers could create completely new forms of matter

The way we can tweak interactions between qubits in quantum computers means the machines could help us create novel structures with weird properties we have never seen in nature

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03.06.2022
17:33 Phys.org Doubling up Cooper pairs to protect qubits in quantum computers from noise

A team of researchers affiliated with several institutions in France has developed a means of using pairs of Cooper pairs to protect qubits inside a quantum computer from external noise. In their paper published in the journal Physical Review X, the group describes how they tackled the problem of qubit sensitivity to noise and how well their approach worked when tested.

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02.06.2022
16:43 Technology.org Researchers explore how quantum networks could transform cybersecurity

Quantum technology dangles a tantalizing vision of an internet where information is inviolate and hackers fear to tread,

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15:33 Technology.org Commonwealth Cyber Initiative researchers explore how quantum networks could transform cybersecurity

Quantum technology dangles a tantalizing vision of an internet where information is inviolate and hackers fear to tread,

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01.06.2022
19:30 NewScientist.Com Advanced quantum computer made available to the public for first time

A computer capable of achieving quantum advantage – a demonstration of supremacy over conventional machines – is the first that anyone can use over the internet

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18:50 Nature.Com Loops simplify a set-up to boost quantum computational advantage

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18:50 Nature.Com Quantum computational advantage with a programmable photonic processor

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18:46 Nature.com (news) Loops simplify a set-up to boost quantum computational advantage

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18:46 Nature.com (news) Quantum computational advantage with a programmable photonic processor

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27.05.2022
16:40 ScienceDaily.com Toward error-free quantum computing

For quantum computers to be useful in practice, errors must be detected and corrected. A team of experimental physicists has now implemented a universal set of computational operations on fault-tolerant quantum bits for the first time, demonstrating how an algorithm can be programmed on a quantum computer so that errors do not spoil the result.

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02:36 CosmosMagazine.com First demonstration of universal operations on an error-free quantum computer

For years we have been told that quantum computing is just around the corner, with many advances suggesting that computers based on quantum mechanics will eventually supersede current computing technologies and open an array of new possibilities. Now, new research has developed the first functioning error-free quantum-computing system. Using the complex and irregular quantum principles […]

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26.05.2022
14:43 Technology.org Argonne scientists use quantum computers to simulate quantum materials

Scientists achieve important milestone in making quantum computing more effective. Quantum computers promise to revolutionize science by enabling

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12:00 NewScientist.Com A quantum computer could catch its own errors on any calculation

A set of 16 qubits has been arranged so that they may be able to run any calculation error-free – a crucial step toward building quantum computers that can outpace traditional ones

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25.05.2022
22:40 ScienceDaily.com Researchers teleport quantum information across rudimentary quantum network

Researchers have succeeded in teleporting quantum information across a rudimentary network. This first of its kind is an important step towards a future quantum Internet. This breakthrough was made possible by a greatly improved quantum memory and enhanced quality of the quantum links between the three nodes of the network.

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19:33 Phys.org Error-free quantum computing gets real

In modern computers, errors during processing and storage of information have become a rarity due to high-quality fabrication. However, for critical applications, where even single errors can have serious effects, error correction mechanisms based on redundancy of the processed data are still used.

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18:50 Nature.Com Breakthrough in teleportation furthers quantum network development

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18:50 Nature.Com Demonstration of fault-tolerant universal quantum gate operations

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18:50 Nature.Com Qubit teleportation between non-neighbouring nodes in a quantum network

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18:36 Nature.com (news) Breakthrough in teleportation furthers quantum network development

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18:36 Nature.com (news) Demonstration of fault-tolerant universal quantum gate operations

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18:36 Nature.com (news) Qubit teleportation between non-neighbouring nodes in a quantum network

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24.05.2022
23:13 ScienceDaily.com Scientists use quantum computers to simulate quantum materials

Researchers have used quantum computers to simulate spin defects, an important material property for the next generation of quantum computers.

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20:43 Phys.org Scientists use quantum computers to simulate quantum materials

Quantum computers promise to revolutionize science by enabling computations that were once thought impossible. But for quantum computers to become an everyday reality, there is a long way to go with many challenging tests to pass.

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17:28 Photonics.com Quantum Computing Inc. to Acquire QPhoton

Quantum Computing Inc. (QCI) has entered into a definitive agreement to acquire QPhoton. The two companies entered a business partnership in February, including an exclusive marketing agreement. The companies had been working together to merge QCI’s quantum software solution Qatalyst with QPhoton’s advanced photonics quantum technologies for applications in QCI’s specific solutions. The acquisition serves to extend QCI’s offerings and accelerate the accessibility of quantum computing and other technologies into deployable solutions, and it makes QCI a full-spectrum quantum software and hardware company. QPhoton will be a wholly owned subsidiary of QCI, with QPhoton CEO Yuping Huang expected to join QCI...

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19.05.2022
16:42 Phys.org Laser annealing transmon qubits for high-performance superconducting quantum processors

Quantum physicists aim to scale the number of qubits during quantum computing, while maintaining high-fidelity quantum gates; this is a challenging task due to the precise frequency requirements that accompany the process. Superconducting quantum processors with more than 50 qubits are currently actively available and these fixed frequency transmons are attractive due to their long coherence and noise immunity. A transmon is a type of a superconducting charge qubit designed to have reduced sensitivity to charge noise. In a new report now published in Science Advances, Eric J. Zhang and a team of scientists at IBM Quantum, IBM T.J. Watson Research Centre, New York, U.S., used laser annealing to selectively tune transmon qubits into the desired frequency patterns. The research team achieved a tuning precision of 18.5 MHz, without any measurable impact on quantum coherence, and envision facilitating selective annealing in this way to play a central role in fixed-frequency architectures.

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12.05.2022
14:07 Photonics.com ColdQuanta Adds Super.tech, Launches Cold Atom Quantum Computer

Quantum technology company ColdQuanta has acquired Super.tech, a quantum platform developer that specializes in quantum software application. ColdQuanta also announced the beta launch of Hilbert, the company’s gate-based cold atom quantum computer. Hilbert will be initially available in beta, the company said, before integration with public cloud services, which will be introduced later this year. The acquisition of Super.tech transforms ColdQuanta into a multiplatform, quantum hardware and software company. The acquisition will also serve to enhance the capabilities of Hilbert; Super.tech will improve circuit performance via pulse-level optimization, optimized transpilation, and error mitigation techniques. The ability to...

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04:00 NewScientist.Com Google calls for urgent switch to quantum-safe encryption as US delays

A US body in charge of choosing new encryption algorithms that can withstand quantum computers has delayed announcing them due to undisclosed legal reasons, while a team at Google is calling for an immediate switch

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11.05.2022
18:30 Nature.Com Transitioning organizations to post-quantum cryptography

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18:25 Nature.com (news) Transitioning organizations to post-quantum cryptography

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08.05.2022
17:10 SingularityHub.Com The Ideal Qubit? Future Quantum Computers Could Crunch Data With Single Electrons on Neon Ice

The digital world—your laptop, the internet it’s connected to, and the companies that make it all go—sits on a foundation of bits. These bits are the language digital computers speak. Bits come in two flavors: Numerically, these two states are represented as ones and zeroes. On computer chips they’re made physical by miniature switches called […]

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06.05.2022
19:40 ScienceDaily.com In balance: Quantum computing needs the right combination of order and disorder

Researchers have analyzed cutting-edge device structures of quantum computers to demonstrate that some of them are indeed operating dangerously close to a threshold of chaotic meltdown. The challenge is to walk a thin line between too high, but also too low disorder to safeguard device operation.

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19:03 Phys.org In balance: Quantum computing needs the right combination of order and disorder

Research conducted within the Cluster of Excellence "Matter and Light for Quantum Computing" (ML4Q) has analyzed cutting-edge device structures of quantum computers to demonstrate that some of them are indeed operating dangerously close to a threshold of chaotic meltdown. The challenge is to walk a thin line between too high, but also too low disorder to safeguard device operation. The study has been published today in Nature Communications.

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16:33 Technology.org Neon ice shows promise as new qubit platform

The fundamental building blocks of a quantum computer are quantum bits or qubits. Some of the most common

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15:33 Technology.org Building a better quantum bit: New qubit breakthrough could transform quantum computing

You are no doubt viewing this article on a digital device whose basic unit of information is the

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02:02 ScienceMag.org Worried quantum computers will supercharge hacking, White House calls for encryption shift

National security memo envisions new cryptographic approach starting in 2024

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00:03 Phys.org Researchers investigate quantum network solutions, by ground and by air

While quantum computers represent a revolution in computation, they can't communicate with each other the way regular computers can—over the internet. If quantum computers could be connected through a quantum network, they could facilitate perfectly secure communication between more than two parties or combine computing power to solve much harder problems than one quantum computer could do alone.

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05.05.2022
18:40 Nature.Com Fault-tolerant operation of a logical qubit in a diamond quantum processor

Nature is the international weekly journal of science: a magazine style journal that publishes full-length research papers in all disciplines of science, as well as News and Views, reviews, news, features, commentaries, web focuses and more, covering all branches of science and how science impacts upon all aspects of society and life.

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18:36 Nature.com (news) Fault-tolerant operation of a logical qubit in a diamond quantum processor

Nature is the international weekly journal of science: a magazine style journal that publishes full-length research papers in all disciplines of science, as well as News and Views, reviews, news, features, commentaries, web focuses and more, covering all branches of science and how science impacts upon all aspects of society and life.

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04.05.2022
20:23 Nanowerk.com Building a better quantum bit: New qubit breakthrough could transform quantum computing

Researchers announced the creation of a new qubit platform that shows great promise to be developed into future quantum computers.

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19:12 Phys.org Building a better quantum bit: New qubit breakthrough could transform quantum computing

You are no doubt viewing this article on a digital device whose basic unit of information is the bit, either 0 or 1. Scientists worldwide are racing to develop a new kind of computer based on the use of quantum bits, or qubits, which can simultaneously be 0 and 1 and could one day solve complex problems beyond any classical supercomputers.

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18:46 Nature.com (news) Single electrons on solid neon as a solid-state qubit platform

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18:40 Nature.Com Single electrons on solid neon as a solid-state qubit platform

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03.05.2022
23:02 Technology.org Silicon carbide electro-optic modulators could unlock the next level of quantum computing

More than three decades ago when silicon carbide was found to display the ‘Pockels effect’. It is a

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21:23 Technology.org Silicon carbide electro-optic modulators could unlock the next level of quantum computing

More than three decades ago when silicon carbide was found to display the ‘Pockels effect’. It is a

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18:31 Physics.Aps.org A New Option for Neutral-Atom Quantum Computing

Author(s): Marric StephensTwo independent teams show that neutral ytterbium-171 atoms can be trapped and used for quantum information processing, bringing quantum computers based on this platform a step closer to reality.    [Physics 15, s55] Published Tue May 03, 2022

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14:13 Phys.org New control electronics for quantum computers that improve performance, cut costs

When designing a next-generation quantum computer, a surprisingly large problem is bridging the communication gap between the classical and quantum worlds. Such computers need a specialized control and readout electronics to translate back and forth between the human operator and the quantum computer's languages—but existing systems are cumbersome and expensive.

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02.05.2022
18:31 Physics.Aps.org Seismic Sensing Using Quantum Cryptography Network

Author(s): Michael SchirberAn experiment demonstrates that quantum key distribution networks, which are part of highly secure cryptography schemes, can also detect and locate earthquakes. [Physics 15, 63] Published Mon May 02, 2022

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30.04.2022
00:40 ScienceDaily.com Engineers develop new control electronics for quantum computers that improve performance, cut costs

Quantum computing experiments now have a new control and readout electronics option that will significantly improve performance while replacing cumbersome and expensive systems.

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29.04.2022
17:23 Nanowerk.com New approach may help clear hurdle to large-scale quantum computing

New method for shuttling entangled atoms in quantum processor at the forefront for building large-scale programmable quantum machines.

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16:33 Phys.org High coherence and low cross-talk in a superconducting qubit architecture

In a new report now published in Science Advances, Peter A. Spring and a team of scientists in physics at the Oxford University described qubit coherence and low cross-talk and single-qubit gate errors in superconducting qubit architecture, suited for two-dimensional (2D) lattices of qubits. The experimental setup involved an inductively shunted cavity enclosure with non-galvanic, out-of-plane control wiring, qubits and resonators fabricated on opposing sides of a substrate. The scientists developed a proof-of-concept device featuring four uncoupled transmon qubits, i.e., a superconducting charged qubit with reduced sensitivity to charge noise, to exhibit specific features measured via simultaneous randomized benchmarking. The three-dimensional integrated nature of the control wiring allowed the qubit to remain addressable as the architecture formed larger qubit lattices.

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27.04.2022
18:14 Phys.org Fault-tolerant quantum computer memory in diamond

Quantum computing holds the potential to be a game-changing future technology in fields ranging from chemistry to cryptography to finance to pharmaceuticals. Compared to conventional computers, scientists suggest that quantum computers could operate many thousand times faster. To harness this power, scientists today are looking at ways to construct quantum computer networks. Fault-tolerant quantum memory, which responds well when hardware or software malfunctions occur, will play an important role in these networks. A research team from Yokohama National University is exploring quantum memory that is resilient against operational or environmental errors.

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25.04.2022
17:00 SingularityHub.Com Neutral Atom Quantum Computers Edge Closer to Reality With Two New Breakthroughs

Neutral atom quantum computers promise solutions to many of the problems that beset today’s devices, but the technology is still nascent. Recent breakthroughs in the ability to control and program these devices suggest they may be nearing prime time. The most well-developed quantum technology today relies on superconducting qubits, which power both IBM and Google’s […]

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12:33 Technology.org Scientists run the quantum algorithm on a neutral atom quantum computer for the first time

A university-industry collaboration has successfully run a quantum algorithm on a type of quantum computer known as a

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20.04.2022
19:20 Nature.Com Multi-qubit entanglement and algorithms on a neutral-atom quantum computer

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19:15 Nature.com (news) Multi-qubit entanglement and algorithms on a neutral-atom quantum computer

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19.04.2022
16:20 ScientificAmerican.Com How to Fix Quantum Computing Bugs

The same physics that makes quantum computers powerful also makes them finicky. New techniques aim to correct errors faster than they can build up -- Read more on ScientificAmerican.com

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16:10 ScientificAmerican.Com Birdsong, Quantum Computing, Omicron's Mutations, and More

How science helps us see, hear and fix things we can’t easily perceive -- Read more on ScientificAmerican.com

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15.04.2022
23:52 Technology.org Graphene-hBN breakthrough to spur new LEDs, quantum computing

A discovery that could speed research into next-generation electronics and LED devices, a University of Michigan research team

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18:12 Phys.org Ancient Namibian stone could hold key to future quantum computers

A special form of light made using an ancient Namibian gemstone could be the key to new light-based quantum computers, which could solve long-held scientific mysteries, according to new research led by the University of St Andrews.

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13:33 Technology.org Graphene-hBN breakthrough to spur new LEDs, quantum computing

A discovery that could speed research into next-generation electronics and LED devices, a University of Michigan research team

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14.04.2022
18:41 ScienceDaily.com Graphene-hBN breakthrough to spur new LEDs, quantum computing

In a discovery that could speed research into next-generation electronics and LED devices, a research team has developed a reliable, scalable method for growing single layers of hexagonal boron nitride on graphene.

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18:34 Phys.org Graphene-hBN breakthrough to spur new LEDs, quantum computing

In a discovery that could speed research into next-generation electronics and LED devices, a University of Michigan research team has developed the first reliable, scalable method for growing single layers of hexagonal boron nitride on graphene.

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17:24 Nanowerk.com Graphene-hBN breakthrough to spur new LEDs, quantum computing

Study uncovers first method for producing high-quality, wafer-scale, single-layer hexagonal boron nitride.

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16:54 Technology.org Team simulates collider physics on quantum computer

Lawrence Berkeley National Laboratory physicists Christian Bauer, Marat Freytsis and Benjamin Nachman have leveraged an IBM Q quantum

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14:06 Photonics.com Modular Waveguide Represents Step Toward Faster Quantum Computers

Researchers at the University of Tokyo generated strongly nonclassical light using a modular waveguide-based light source. The demonstration, which the researchers said is the first of its kind, is poised to benefit future work aimed at creating faster and more practical optical quantum computers. Continuous-wave squeezed light is used to generate the various quantum states necessary to perform quantum computing. For optimal computing performance, the squeezed light source must exhibit very low levels of light loss and be broadband. In the work, the researchers generated a state of light known as Schrödinger or Schrödinger’s cat, which is a superposition of coherent states. The team created a waveguide optical...

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10:02 Technology.org Team simulates collider physics on quantum computer

Lawrence Berkeley National Laboratory physicists Christian Bauer, Marat Freytsis and Benjamin Nachman have leveraged an IBM Q quantum

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13.04.2022
21:43 Phys.org Team simulates collider physics on quantum computer

Lawrence Berkeley National Laboratory physicists Christian Bauer, Marat Freytsis and Benjamin Nachman have leveraged an IBM Q quantum computer through the Oak Ridge Leadership Computing Facility's Quantum Computing User Program to capture part of a calculation of two protons colliding. The calculation can show the probability that an outgoing particle will emit additional particles.

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12.04.2022
10:12 Technology.org Intel to install quantum computing test bed for Q-NEXT

Partnership with the world’s leading chip manufacturer accelerates the development of quantum devices. Argonne is soon to receive

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11.04.2022
16:42 Phys.org Study highlights the possibility of building wave-shape-tolerant qubit gates

Quantum computers, machines that leverage quantum states to perform computations and store data, could soon revolutionize the computing industry, achieving significantly greater speeds and performance than existing computers. While countless companies worldwide, including Google and IBM as well as smaller start-ups, have started working on quantum technologies, the exact architecture that will lead to their mass production remains unclear.

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13:13 Technology.org Discovery in quantum computing shows promise for silicon ‘qubits’

A discovery by Princeton physicists is paving the way for silicon-based technologies in quantum computing, especially as quantum

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10:03 Technology.org Discovery in quantum computing shows promise for silicon ‘qubits’

Why it matters: Silicon is a naturally abundant element, which is why it is found in everyday materials

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08.04.2022
13:03 Technology.org SUNY collaboration explores quantum computing network

Across the globe, scientists are racing to create practical quantum computers. Such an advancement would eclipse the capabilities

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07.04.2022
16:12 Phys.org New quantum dots for quantum networks

Scientists from The Institute of Scientific and Industrial Research (SANKEN) at Osaka University, in collaboration with the Canadian National Research Council (NRC), developed a gallium arsenide (GaAs) quantum dot that can trap individual electrons. By controlling the crystallographic orientation of the substrate, the research team hopes to optimize the conversion of photons into spin-polarized electrons. This work may help make quantum networks more practical, especially for encrypting secure data.

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09:42 Nanowerk.com New quantum dots for quantum networks

Researchers develop new quantum dot circuits that have the potential to efficiently convert photon quantum information into electron spin, which may help advance the field of quantum networks and the quantum internet.

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06.04.2022
22:53 Nanowerk.com In race to build quantum computing hardware, silicon begins to shine

This research promises to accelerate the use of silicon technology as viable alternatives to the other competing quantum computing technologies, such as superconductors or trapped ions.

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22:32 Phys.org In race to build quantum computing hardware, silicon begins to shine

Research conducted by Princeton University physicists is paving the way for the use of silicon-based technologies in quantum computing, especially as quantum bits—the basic units of quantum computers. This research promises to accelerate the use of silicon technology as a viable alternative to other quantum computing technologies, such as superconductors or trapped ions.

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04.04.2022
17:00 SingularityHub.Com This ‘Quantum Memristor’ Could Enable Brain-Like Quantum Computers

Quantum and neuromorphic approaches both hold the promise of fundamentally rewriting the way we do computing. And now they have been merged after researchers developed a “quantum memristor” that could form the basis of quantum neural networks. While Moore’s Law still seems to have life in it, the limits of conventional computing are becoming apparent, […]

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31.03.2022
14:06 Photonics.com Photonic Integrated-Based Memristor Gives AI Applicability in Quantum Computing

By developing a photonic quantum memristor, researchers at the University of Vienna, the National Research Council (CNR), and the Polytechnic University of Milan may have found a way to link artificial intelligence (AI) and quantum computing. The researchers engineered a device that works the same as a memristor, while encoding and transmitting quantum information and acting on quantum states. Memristive devices are electrical components that change their resistance depending on the memory of the previous electrical current flowing through them. They are used in neuromorphic architectures such as neural networks because their behavior is similar to that of a neural synapse. Abstract representation of a neural network that is made...

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29.03.2022
16:40 ScientificAmerican.Com Humans and the Quantum Experience

-- Read more on ScientificAmerican.com

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28.03.2022
17:12 TechnologyReview.com The Download: Quantum computing has a hype problem

This is today’s edition of The Download, our weekday newsletter that provides a daily dose of what’s going on in the world of technology. Quantum computing has a hype problem As a buzzword, quantum computing probably ranks only below AI in terms of hype. Large tech companies now have substantial research and development efforts in quantum computing.…

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12:12 TechnologyReview.com Quantum computing has a hype problem

As a buzzword, quantum computing probably ranks only below AI in terms of hype. Large tech companies such as Alphabet, Amazon, and Microsoft now have substantial research and development efforts in quantum computing. A host of startups have sprung up as well, some boasting staggering valuations. IonQ, for example, was valued at $2 billion when…

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25.03.2022
17:03 Phys.org Researchers develop quantum gate enabling investigation of optimization problems

The development of quantum computers is being pursued worldwide, and there are various concepts of how computing using the properties of the quantum world can be implemented. Many of these have already advanced experimentally into areas that can no longer be emulated on classical computers. But the technologies have not yet reached the point where they can be used to solve larger computational problems. Therefore, researchers are currently looking for applications that can be implemented on existing platforms. "We are looking for tasks that we can compute on existing hardware," says Rick van Bijnen of the Institute of Quantum Optics and Quantum Information at the Austrian Academy of Sciences in Innsbruck. A team around Van Bijnen and the Lechner research group is now proposing a method to solve optimization problems using neutral atoms.

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24.03.2022
15:12 Technology.org Robust and Reliable Quantum Computing

A new programme called RoaRQ and funded by a £3m grant from the Engineering and Physical Sciences Research

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14:37 Technology.org Tiny magnets could hold the secret to new quantum computers

Magnetic interactions could point to miniaturizable quantum devices. From MRI machines to computer hard disk storage, magnetism has played a

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22.03.2022
20:55 ScienceDaily.com Qubits: Developing long-distance quantum telecommunications networks

Computers, smartphones, GPS: quantum physics has enabled many technological advances. It is now opening up new fields of research in cryptography (the art of coding messages) with the aim of developing ultra-secure telecommunications networks. There is one obstacle, however: after a few hundred kilometers within an optical fiber, the photons that carry the qubits or 'quantum bits' (the information) disappear. They therefore need 'repeaters', a kind of 'relay', which are partly based on a quantum memory. By managing to store a qubit in a crystal (a 'memory') for 20 milliseconds, a team has now taken a major step towards the development of long-distance quantum telecommunications networks.

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19:01 Technology.org Researchers continue to confront major hurdles in quantum computing

With new insights on the problem of noise in quantum computing, Rochester researchers make major strides in improving

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16:10 Phys.org A technique for making quantum computing more resilient to noise, which boosts performance

Quantum computing continues to advance at a rapid pace, but one challenge that holds the field back is mitigating the noise that plagues quantum machines. This leads to much higher error rates compared to classical computers.

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