Search results for time reversal symmetry

Superconductivity Feb 12, 2020

Time crystals and topological superconductors merge

"Powering a topological superconductor using a time crystal gives you more than the sum of its parts," says Jason Alicea, a researcher at California Institute of Technology (Caltech) in the US. The discovery of topological ...

Bio & Medicine Jan 24, 2020

Researchers explain how disorder in tiny crystals enables heat-therapeutic systems

A new research study at the Institute of Electronic Structure and Lasers (IESL) of the Foundation for Research and Technology-Hellas (FORTH) finds that minute crystals, many thousand times smaller than a particle of dust, ...

Condensed Matter Jan 14, 2020

New classes of topological crystalline insulators having surface rotation anomaly

In a new report on Science Advances, Chen Fang and Liang Fu from the Beijing National Laboratory for Condensed Matter Physics in China, Kavli Institute for Theoretical Sciences and the Department of Physics, Massachusetts ...

General Physics Jan 8, 2020

Intrinsic quantized anomalous Hall effect in a moiré heterostructure

The quantum anomalous Hall (QAH) effect can combine topology and magnetism to produce precisely quantized Hall resistance at zero magnetic field (an environment carefully screened from magnetic fields). In a recent report ...

General Physics Nov 6, 2019

Rotational form of spontaneous crystallographic ordering discovered in ferroic material

A team of researchers from the University of Michigan and Rutgers University has discovered a rotational form of spontaneous crystallographic ordering in a ferroic material. In their paper published in the journal Nature ...

Condensed Matter Nov 5, 2019

Chemists observe 'spooky' quantum tunneling

A molecule of ammonia, NH3, typically exists as an umbrella shape, with three hydrogen atoms fanned out in a nonplanar arrangement around a central nitrogen atom. This umbrella structure is very stable and would normally ...

General Physics Oct 29, 2019

Liquid crystal droplets as versatile microswimmers

Nature's most common swimmers are single-celled organisms such as microalgae that swim toward light sources, and sperm cells that swim toward an ovum. For a physicist, cells are simply biochemical machines, which must obey ...

Quantum Physics Oct 7, 2019

Complex energies, quantum symmetries

In a certain sense, physics is the study of the universe's symmetries. Physicists strive to understand how systems and symmetries change under various transformations.

General Physics Sep 20, 2019

The best of two worlds: Magnetism and Weyl semimetals

Imagine a world in which electricity could flow through the grid without any losses or where all the data in the world could be stored in the cloud without the need for power stations. This seems unimaginable but a path ...

Quantum Physics Sep 5, 2019

Exotic physics phenomenon is observed for first time

An exotic physical phenomenon, involving optical waves, synthetic magnetic fields, and time reversal, has been directly observed for the first time, following decades of attempts. The new finding could lead to realizations ...

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