Phys.org news tagged with:quantum

The LHCb experiment at CERN recently announced the first proton-proton collisions at a world-record energy with its brand-new detector designed to cope with much more demanding data-taking condit...

https://phys.org/news/2022-08-quantum-machine-lhcb.html

Tiny crystals, known as quantum dots, have enabled an international team to achieve a quantum efficiency exceeding 100 percent in the photocurrent generated in a hybrid inorganic-organic semicond...

https://phys.org/news/2022-08-exceeding-percent-quantum-efficiency-photocurrent.html

A research partnership at the Advanced Quantum Testbed (AQT) at Lawrence Berkeley National Laboratory (Berkeley Lab) and Chicago-based Super.tech (acquired by ColdQuanta in May 2022) demonstrated...

https://phys.org/news/2022-08-optimizing-swap-networks-quantum.html

Physicists are (temporarily) augmenting reality to crack the code of quantum systems.

https://phys.org/news/2022-08-neural-networks-ghost-electrons-accurately.html

In its heyday, UIUC's Blue Waters was one of the world's top supercomputers. Anyone who was curious could drop by its 30,000-square-foot machine room for a tour, and spend half an hour strolling ...

https://phys.org/news/2022-08-materials-traits-resemble-human-brain.html

Researchers have designed smart, color-controllable white light devices from quantum dots—tiny semiconductors just a few billionths of a meter in size—which are more efficient and have better...

https://phys.org/news/2022-08-smart-based-quantum-dots-accurately.html

Much ado was made about the Higgs boson when this elusive particle was discovered in 2012. Though it was touted as giving ordinary matter mass, interactions with the Higgs field only generate abo...

https://phys.org/news/2022-08-strength-strong.html

Quantum computing, though still in its early days, has the potential to dramatically increase processing power by harnessing the strange behavior of particles at the smallest scales. Some researc...

https://phys.org/news/2022-08-approach-quantum.html

Superconductors, materials that can conduct electricity with no resistance at low temperatures, have many interesting and advantageous properties. In recent years, physicists and computer scienti...

https://phys.org/news/2022-08-signature-superconducting-atomic-scale.html

Atoms are notoriously difficult to control. They zigzag like fireflies, tunnel out of the strongest containers and jitter even at temperatures near absolute zero.

https://phys.org/news/2022-08-miniature-lens-atoms.html

One of the cornerstones of the implementation of quantum technology is the creation and manipulation of the shape of external fields that can optimize the performance of quantum devices. Known as...

https://phys.org/news/2022-08-quantum-advanced-technology.html

Until 2018, the SI unit of mass, the kilogram, was defined as the mass of a real object: the International Prototype Kilogram, kept in a secure facility in the outskirts of Paris. On November 16,...

https://phys.org/news/2022-08-kilogram.html

A roadmap for the future direction of quantum simulation has been set out in a paper co-authored at the University of Strathclyde.

https://phys.org/news/2022-07-roadmap-future-quantum-simulation.html

Quantum computing, a field that relies on the principles of quantum mechanics to calculate outcomes, has the potential to perform tasks too complex for traditional computers and to do so at high ...

https://phys.org/news/2022-07-method-qubits-advance-quantum.html

An expression for the maximum speed at which changes in macroscopic systems can occur has been derived by a theoretical physicist at RIKEN. This will deepen our understanding of quantum phenomena...

https://phys.org/news/2022-07-limits-quantum-phenomena-macro-sized.html

When a highly diluted gas is cooled to extremely low temperatures, bizarre properties are revealed. Thus, some gases form a so-called Bose-Einstein condensate—a type of matter in which all atom...

https://phys.org/news/2022-07-nanokelvin-microwave-freezer-molecules.html

Scientists at the Oak Ridge National Laboratory used neutron scattering to determine whether a specific material's atomic structure could host a novel state of matter called a spiral spin liquid....

https://phys.org/news/2022-07-magnetic-quantum-material-broadens-platform.html

The Internet is teeming with highly sensitive information. Sophisticated encryption techniques generally ensure that such content cannot be intercepted and read. But in the future high-performanc...

https://phys.org/news/2022-07-quantum-cryptography-hacking-futile.html

A method known as quantum key distribution has long held the promise of communication security unattainable in conventional cryptography. An international team of scientists has now demonstrated ...

https://phys.org/news/2022-07-quantum-key-based-high-quality-entanglement.html

City College of New York physicist Pouyan Ghaemi and his research team are claiming significant progress in using quantum computers to study and predict how the state of a large number of interac...

https://phys.org/news/2022-07-team-scripts-breakthrough-quantum-algorithm.html

Quantum computers, devices that exploit quantum phenomena to perform computations, could eventually help tackle complex computational problems faster and more efficiently than classical computers...

https://phys.org/news/2022-07-alternative-superconducting-qubit-high-quantum.html

Research drawing on the quantum "anti-butterfly effect" solves a longstanding experimental problem in physics and establishes a method for benchmarking the performance of quantum computers.

https://phys.org/news/2022-07-anti-butterfly-effect-enables-benchmarking-quantum.html

When studying a complex system, scientists identify smaller pieces called subsystems that they can make sense of. By studying subsystems and the correlations between them, they reconstruct an und...

https://phys.org/news/2022-07-theory-quantum-subsystems.html

A semiconductor is a material whose conductivity lies somewhere between that of a conductor and an insulator. This property allows semiconductors to serve as the base material for modern electron...

https://phys.org/news/2022-07-smallest-semiconductor-elucidated.html

The development of high-speed strobe-flash photography in the 1960s by the late MIT professor Harold "Doc" Edgerton allowed us to visualize events too fast for the eye—a bullet piercing an appl...

https://phys.org/news/2022-07-scientists-capture-first-ever-view-hidden.html

A chemist at the University of Cincinnati has come up with a novel way to study the thermodynamic properties of molten salts, which are used in many nuclear and solar energy applications.

https://phys.org/news/2022-07-chemists-secrets-molten-salts.html

Researchers at the Weizmann Institute of Science, the Barcelona Institute of Science and Technology and the National Institute for Material Science in Tsukuba (Japan) have recently probed a Chern...

https://phys.org/news/2022-07-chern-mosaic-berry-curvature-magnetism-magic.html

Via large-scale simulations on supercomputers, a research team from the Department of Physics, the University of Hong Kong (HKU), discovered clear evidence to characterize a highly entangled quan...

https://phys.org/news/2022-07-physicists-signatures-highly-entangled-quantum.html

We all learn from early on that computers work with zeros and ones, also known as binary information. This approach has been so successful that computers now power everything from coffee machines...

https://phys.org/news/2022-07-quantum.html

Our understanding of the universe may not be expanding as much as the universe itself. In some cases, our theories about cosmic inflation may feel as if they are deflating into a black hole.

https://phys.org/news/2022-07-holograms-illuminate-de-sitter-space.html