Coherence

In general relativity, a gravitational white hole is a hypothetical region of space that cannot be entered from outside.

Useful quantum networks are hobbled by the problem of decoherence from environmental "noise." But a new breakthrough could change that.

A long-simmering disagreement over the universe's present-day expansion rate shows no signs of resolution, leaving experts increasingly vexed

Holography is about capturing 3D data from a scene, and being able to reconstruct that scene -- preferably in high fidelity. Holography is not a new idea, but engaging in it is not exactly a point-and...

Physicists from SLAC National Accelerator Laboratory and the University of Hamburg have observed how electrons, excited by ultrafast light pulses, danced in unison around a subnanometer C60 fullerene (buckminsterfullerene) molecule.

Japan's Fugaku supercomputer has gained an edge following the installation of the Reimei quantum computer.

The relationship between the pseudogap and underlying ground-state phases has not yet been rigorously established. We investigated the doped two-dimensional Hubbard model at finite temperature using controlled diagrammatic Monte Carlo calculations, ...

In its most expensive project to date, Germany's Cyber Agency (Cyberagentur) has awarded three different contracts to four quantum computing startups — Quantum Brilliance, ParityQC, ...

Image 1: Coherent AO-xCAO4x series of transmitter and receiver modules. PITTSBURGH, Sept. 19, 2024 (GLOBE NEWSWIRE) — Coherent Corp. (NYSE: COHR), a global leader in optical communications and laser-based technologies, announces the sample availability of its innovative new analog optical multi-link modules featuring a detachable land grid array (LGA) interface. This cutting-edge product platform supports […]

Scientists found quantum edge states in ultracold sodium atoms, possibly leading to highly efficient energy systems with minimal loss.

MIT physicists directly observed ultracold atoms in an "edge state," flowing along a boundary without resistance. The research could help physicists manipulate electrons to flow without friction in materials that could enable super-efficient transmission of energy and data.

Scientists build a new light source for quantum communications by combining existing technologies together to create a stronger and more robust quantum signal.

Researchers at QuTech developed somersaulting spin qubits for universal quantum logic. This achievement may enable efficient control of large semiconductor qubit arrays. The research group published their demonstration of hopping spins in Nature Communications and their work on somersaulting spins in Science.

Linear accelerators could turbocharge EUV lithography

In physics, nonreciprocity occurs when a system's response varies depending on the direction in which waves or signals are propagating within it. This asymmetry arises from a break in so-called time-reversal symmetry, which essentially means that a system's processes observed as they evolve over time will be different compared to those processes observed on rewind.

Primordial black holes born from density fluctuations dating back to the Big Bang have been frustratingly elusive, but a new quantum clue has been discovered...

Quantum computers, computing devices that leverage the principles of quantum mechanics, could outperform classical computing on some complex optimization and processing tasks. In quantum computers, classical units of information (bits), which can either have a value of 1 or 0, are substituted by quantum bits or qubits, which can be in a mixture of both 0 and 1 simultaneously.

Physicists with the BESIII Collaboration have observed an anomalous line shape around ppbar mass threshold in the J/ψ→γ3(π+π-) decay, which indicates the existence of a new bound state, labeled X(1880).

Artificial intelligence (AI) has the potential to transform technologies as diverse as solar panels, in-body medical sensors and self-driving vehicles. But these applications are already pushing today's computers to their limits when it comes to speed, memory size and energy use.

Our Sun lies within 300 parsecs (around 1,000 light-years) of the 2,700-parsec- (around 9,000-light-year-) long sinusoidal chain of dense gas clouds known as the Radcliffe Wave.