Search results for time reversal symmetry

General Physics Nov 7, 2017

A new concept for a unidirectional waveguide

In the past decade, a new type of material has attracted raising attraction: the so-called topological insulator. This class of materials exhibits a very peculiar property: they behave like insulators in the interior, but ...

General Physics Oct 18, 2017

Missing link between new topological phases of matter discovered

Physicists at BESSY II have investigated a class of materials that exhibit characteristics of topological insulators. During these studies, they discovered a transition between two different topological phases, one of which ...

General Physics Oct 11, 2017

Injecting electrons jolts 2-D structure into new atomic pattern

The same electrostatic charge that can make hair stand on end and attach balloons to clothing could be an efficient way to drive atomically thin electronic memory devices of the future, according to a new study led by researchers ...

Materials Science Sep 27, 2017

Researchers have a new twist on asymmetric catalysis

The team of Osaka and Iwate Medical University efficiently developed new and highly pure screw-shaped molecules for use in drug synthesis

Quantum Physics Aug 22, 2017

Unconventional quantum systems may lead to novel optical devices

(Phys.org)—Physicists have experimentally demonstrated an optical system based on an unconventional class of quantum mechanical systems that could lead to the development of new quantum optical devices. The system is called ...

General Physics Jul 20, 2017

Most precise measurement of proton mass

What is the mass of a proton? Scientists from Germany and Japan have made an important step toward better understanding this fundamental constant. By means of precision measurements on a single proton, they were able to improve ...

Condensed Matter Jul 10, 2017

Researchers demonstrate 'shape memory' effect in gold particles

Researchers from the Technion-Israel Institute of Technology and Germany have demonstrated for the first time the phenomena of shape memory and self-healing in gold microparticles. Achieved through defects-mediated diffusion ...

Quantum Physics Jul 5, 2017

Physicists provide support for retrocausal quantum theory, in which the future influences the past

(Phys.org)—Although there are many counterintuitive ideas in quantum theory, the idea that influences can travel backwards in time (from the future to the past) is generally not one of them. However, recently some physicists ...

Superconductivity Jun 26, 2017

Tiny magnetic tremors unlock exotic superconductivity

Deep within solids, individual electrons zip around on a nanoscale highway paved with atoms. For the most part, these electrons avoid one another, kept in separate lanes by their mutual repulsion. But vibrations in the atomic ...

General Physics Apr 26, 2017

Physicists design 2-D materials that conduct electricity at almost the speed of light

Physicists at the University of California, Irvine and elsewhere have fabricated new two-dimensional quantum materials with breakthrough electrical and magnetic attributes that could make them building blocks of future quantum ...

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