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Physics news
The neutron lifetime problem—and its possible solution
Neutrons are among the basic building blocks of matter. As long as they are part of a stable atomic nucleus, they can stay there for arbitrary periods of time. However, the situation is different for free neutrons: They decay—after ...
General Physics
22 minutes ago
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New theoretical framework sets limits for the realization of quantum processes in spacetime
Bell's theorem, the well-known theoretical framework introduced by John Bell decades ago, delineates the limits of classical physical processes arising from relativistic causality principles. These are principles rooted in ...
First coherent picture of an atomic nucleus made of quarks and gluons
The atomic nucleus is made up of protons and neutrons, particles that exist through the interaction of quarks bonded by gluons. It would seem, therefore, that it should not be difficult to reproduce all the properties of ...
General Physics
22 hours ago
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2097
Janus-like metasurface technology shows different optical responses according to the direction of light
Metasurface technology is an advanced optical technology that is thinner, lighter, and more capable of precisely controlling light through nanometer-sized artificial structures than conventional technologies. KAIST researchers ...
Optics & Photonics
16 hours ago
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In a fusion device plasma, a steep ion temperature gradient slows the growth of magnetic islands
Future fusion power plants will require good plasma confinement to sustain reactions and generate energy. One way to contain plasma for fusion reactions is to use a tokamak, a device that applies magnetic fields to "bottle" ...
Plasma Physics
16 hours ago
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Enhanced wavelength conversion paves the way for more efficient quantum information transfer
Advancements in quantum information technology are paving the way for faster and more efficient data transfer. A key challenge has been ensuring that qubits, the fundamental units of quantum information, can be transferred ...
Optics & Photonics
16 hours ago
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Researchers unveil pressure-tuned superconductivity in natural bulk heterostructure 6R-TaS₂
By combining comprehensive high-pressure measurements and first-principles calculations, a research group has discovered the pressure-induced unusual evolution of superconductivity (SC) and exotic interplay between SC and ...
Condensed Matter
18 hours ago
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Spin-wave reservoir chips can enhance edge computing
Reservoir computing (RC) has a few benefits over other artificial neural networks, including the reservoir that gives this technique its name. The reservoir functions mainly to nonlinearly transform input data more quickly ...
Condensed Matter
20 hours ago
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New light-induced material shows powerful potential for quantum applications
A class of material called perovskites, which have special electronic bonding with many applications, could be useful for quantum sensing.
Condensed Matter
23 hours ago
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Brain delays could be a computational advantage, researchers say
Biological components are less reliable than electrical ones, and rather than instantaneously receive the incoming signals, the signals arrive with a variety of delays. This forces the brain to cope with said delays by having ...
General Physics
17 hours ago
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Multicolor persistent luminescent materials for dynamic optical anti-counterfeiting
Optical anti-counterfeiting technology, as a preventive measure, has deeply permeated our daily lives. Visually readable codes designed based on optical materials are widely used due to their ease of verification, reasonable ...
Optics & Photonics
20 hours ago
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Dual-species atomic arrays show promise for quantum error correction
A study in Nature Physics has realized a dual-species Rydberg array combining rubidium (Rb) and cesium (Cs) atoms to enhance quantum computing and its applications.
LIGO team enhances gravitational wave detection with squeezed light
A team of researchers at the Laser Interferometer Gravitational-Wave Observatory (LIGO), in the U.S., has developed what they describe as a squeezed light system to improve detection sensitivity.
Study explores the physical origin of errors in a spin qubit processor
To achieve remarkable performances, quantum computing systems based on multiple qubits must attain high-fidelity entanglement between their underlying qubits. Past studies have shown that solid-state quantum platforms—quantum ...
Quantum computing and photonics discovery potentially shrinks critical parts by 1,000 times
Researchers have made a discovery that could make quantum computing more compact, potentially shrinking essential components 1,000 times while also requiring less equipment. The research is published in Nature Photonics.
Optics & Photonics
Oct 14, 2024
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Physicists uncover behavior in quantum superconductors that provides a new level of control
A new study has uncovered important behavior in the flow of electric current through quantum superconductors, potentially advancing the development of future technologies like quantum computing.
Superconductivity
Oct 14, 2024
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Quantum research unlocks PET scan potential in disease detection
New research in quantum entanglement could vastly improve disease detection, such as for cancer and Alzheimer's disease.
Optics & Photonics
Oct 14, 2024
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Digital quantum simulation of nuclear magnetic resonance experiments
Programmable quantum computers have the potential to efficiently simulate increasingly complex molecular structures, electronic structures, chemical reactions, and quantum mechanical states in chemistry that classical computers ...
Quantum Physics
Oct 14, 2024
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Novel protocols for estimating Hamiltonian parameters of a superconducting quantum processor could improve precision
Researchers at Freie Universität Berlin, University of Maryland and NIST, Google AI, and Abu Dhabi set out to robustly estimate the free Hamiltonian parameters of bosonic excitations in a superconducting quantum simulator. ...
Google's sycamore quantum chip beats classical computers running random circuit sampling
A team of engineers, physicists and quantum specialists at Google Research has found that reducing noise to a certain level allows the company's sycamore quantum chip to beat classical computers running random circuit sampling ...
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Quantum register reaches 1,200 neutral atoms in continuous operation
New photonics approach enhances quantum computation efficiency
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