A charge-density-wave topological semimetal

A novel material has been discovered that is characterised by the coupling of a charge density wave with the topology of the electronic structure.

There's no way to measure the speed of light in a single direction

Special relativity is one of the most strongly validated theories humanity has ever devised. It is central to everything from space travel and GPS to our electrical power grid. Central to relativity is the fact that the speed of light in a vacuum is an absolute constant. The problem is, that fact has never been proven.

Movers and shakers: New evidence for a unifying theory of granular materials

Understanding the dynamics of granular materials—such as sand flowing through an hourglass or salt pouring through a shaker—is a major unsolved problem in physics. A new paper describes a pattern for how record-sized "shaking" events affect the dynamics of a granular material as it moves from an excited to a relaxed state, adding to the evidence that a unifying theory underlies this behavior.

An avalanche of violence: Analysis reveals predictable patterns in armed conflicts

New work by SFI's Collective Computation Group (C4) finds that human conflict exhibits remarkable regularity despite substantial geographic and cultural differences.

Using the SYK model to examine the fast-charging process of quantum batteries

The Sachdev-Ye-Kitaev (SYK) model, an exactly solvable model devised by Subir Sachdev and Jinwu Ye, has recently proved useful for understanding the characteristics of different types of matter. As it describes quantum matter without quasiparticles and is simultaneously a holographic version of a quantum black hole, it has so far been adopted by both condensed matter and high-energy physicists.

Entangling electrons with heat

Quantum entanglement is key for next-generation computing and communications technology, researchers can now produce it using temperature differences.

Researchers achieve on-demand storage in integrated solid-state quantum memory

Researchers from CAS Key Laboratory of Quantum Information of the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences have demonstrated on-demand storage of photonic qubits in an integrated solid-state quantum memory for the first time. This work was published in Physics Review Letters.

Arecibo is Dead. Should We Build Its Replacement on the Moon?

NASA may finally be serious about the idea of building a large radio telescope in a lunar crater.

Researchers question fundamental study on the Kondo effect

The Kondo effect influences the electrical resistance of metals at low temperatures and generates complex electronic and magnetic orders. Novel concepts for data storage and processing, such as using quantum dots, are based on this. In 1998, researchers from the United States published spectroscopic studies on the Kondo effect using scanning tunneling microscopy, which are considered ground-breaking and have triggered countless others of a similar kind.

High-flux table-top source for femtosecond hard X-ray pulses

Researchers have now accomplished a breakthrough in table-top generation of femtosecond X-ray pulses by demonstrating a stable pulse train at kilohertz repetition rate with a total flux of some 10^12 X-ray photons per second.


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