Search results for time reversal symmetry

General Physics Jan 17, 2024

Efficiency asymmetry: Scientists report fundamental asymmetry between heating and cooling

A new study led by scientists from Spain and Germany has found a fundamental asymmetry showing that heating is consistently faster than cooling, challenging conventional expectations and introducing the concept of "thermal ...

Superconductivity Dec 18, 2023

A new strategy for making and manipulating higher-temperature superconductors

Superconductors have intrigued physicists for decades. But these materials, which allow the perfect, lossless flow of electrons, usually only exhibit this quantum-mechanical peculiarity at temperatures so low—a few degrees ...

Analytical Chemistry Dec 12, 2023

Researchers develop chiral boryl radical catalysts in asymmetric catalysis

Researchers from the University of Science and Technology of China of the Chinese Academy of Sciences, and collaborators, have developed an innovative chiral boryl radical catalysis method, enabling asymmetric catalytic radical ...

Soft Matter Nov 27, 2023

New insights into broken symmetries: Applying the Lorentz reciprocal theorem to fluids with odd viscosities

The Lorentz reciprocal theorem can now be applied to fluids with broken symmetries. Scientists at the Max Planck Institute for Dynamics and Self-Organization (MPI-DS) in Göttingen have found a way to also accommodate this ...

Condensed Matter Nov 20, 2023

Research reveals rare metal could offer revolutionary switch for future quantum devices

Quantum scientists have discovered a rare phenomenon that could hold the key to creating a 'perfect switch' in quantum devices which flips between being an insulator and a superconductor.

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, ...

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