Search results for time reversal symmetry

Condensed Matter Nov 9, 2023

Study leverages chiral phonons for transformative quantum effect

Quantum materials hold the key to a future of lightning-speed, energy-efficient information systems. The problem with tapping their transformative potential is that in solids, the vast number of atoms often drowns out the ...

Plants & Animals Nov 1, 2023

Long presumed to have no heads at all, starfish may be nothing but

For centuries, naturalists have puzzled over what might constitute the head of a sea star, commonly called a "starfish." When looking at a worm, or a fish, it's clear which end is the head and which is the tail. But with ...

Superconductivity Sep 27, 2023

Testing particle scattering and reflection in graphene

Humanity stands on the verge of two major revolutions: the boom in 2-dimensional supermaterials like graphene with incredible properties and the introduction of quantum computers with processing power that vastly outstrips ...

Nanophysics Sep 13, 2023

Scientists reveal twisting-untwisting-retwisting cycle of nanohelices

Reversible nanohelix transformation is one of the most exquisite and important phenomena in nature. Nanomaterials rarely form helical crystals. Due to the irreversibility of the twisting forces studied so far, untwisting ...

Superconductivity Aug 23, 2023

The superconducting diode effect in a device based on coupled Josephson junctions

The so-called superconducting (SC) diode effect is an interesting nonreciprocal phenomenon, occurring when a material is SC in one direction and resistive in the other. This effect has been the focus of numerous physics studies, ...

Condensed Matter Jul 28, 2023

Team creates simple superconducting device that could dramatically cut energy use in computing

MIT scientists and colleagues have created a simple superconducting device that could transfer current through electronic devices much more efficiently than is possible today. As a result, the new diode, a kind of switch, ...

Quantum Physics Jul 13, 2023

Engineering dual carriageways for signals: Research expands possibilities for more flexible signaling devices

Routing signals and isolating them against noise and back-reflections are essential in many practical situations in classical communication as well as in quantum processing. In a theory-experimental collaboration, a team ...

Superconductivity Jun 28, 2023

Discovery of pair density wave state in a two-dimensional high-Tc iron-based superconductor

As a macroscopic quantum state of matter, superconductivity has attracted tremendous attention in the field of scientific research and industry over the past century. According to the BCS (Bardeen-Cooper-Schrieffer) microscopic ...

Astrobiology Jun 15, 2023

Right-handed building blocks of life might have had a rocky start

Harvard University led research may have solved the puzzle of how life became molecularly right-handed. In the paper, "Origin of biological homochirality by crystallization of an RNA precursor on a magnetic surface," published ...

Optics & Photonics Jun 1, 2023

Ultrafast terahertz emission from emerging symmetry-broken materials

Terahertz (THz) emission spectroscopy has emerged as a valuable technique for investigating static physical properties as well as ultrafast dynamics occurring in novel material systems that may remain hidden to other probes.

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