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Search results for time-reversal symmetry

Quantum Âé¶¹ÒùÔºics Aug 27, 2015

Neural qubits: Quantum cognition based on synaptic nuclear spins

(Âé¶¹ÒùÔº)—The pursuit of an understanding of the base machinery of the mind led early researchers to anatomical exhaustion. With neuroscience now in the throes of molecular mayhem and a waning biochemical bliss, physics ...

General Âé¶¹ÒùÔºics Aug 17, 2015

The ALICE experiment at CERN makes precise comparison of light nuclei and antinuclei

The ALICE experiment at the Large Hadron Collider (LHC) at CERN has made a precise measurement of the difference between ratios of the mass and electric charge of light nuclei and antinuclei. The result, published today in ...

General Âé¶¹ÒùÔºics Aug 12, 2015

Protons and antiprotons appear to be true mirror images

In a stringent test of a fundamental property of the standard model of particle physics, known as CPT symmetry, researchers from the RIKEN-led BASE collaboration at CERN have made the most precise measurements so far of the ...

Quantum Âé¶¹ÒùÔºics Jul 28, 2015

Time-symmetric formulation of quantum theory provides new understanding of causality and free choice

The laws of classical mechanics are independent of the direction of time, but whether the same is true in quantum mechanics has been a subject of debate. While it is agreed that the laws that govern isolated quantum systems ...

Condensed Matter Jun 26, 2015

Helium 'balloons' offer new path to control complex materials

Researchers at the Department of Energy's Oak Ridge National Laboratory have developed a new method to manipulate a wide range of materials and their behavior using only a handful of helium ions.

Optics & Photonics Jan 28, 2015

Researchers use sound to slow down, speed up, and block light

How do you make an optical fiber transmit light only one way? Researchers from the University of Illinois at Urbana-Champaign have experimentally demonstrated, for the first time, the phenomenon of Brillouin Scattering Induced ...

Quantum Âé¶¹ÒùÔºics Nov 12, 2014

Shaking the topological cocktail of success

Graphene is the miracle material of the future. Consisting of a single layer of carbon atoms arranged in a honeycomb lattice, the material is extremely stable, flexible, highly conductive and of particular interest for electronic ...

Optics & Photonics Oct 30, 2014

Lord of the microrings: Team reports breakthrough in microring laser cavities

A significant breakthrough in laser technology has been reported by the U.S. Department of Energy (DOE)'s Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California (UC) Berkeley. Scientists led ...

Nanophysics Oct 15, 2014

Researchers develop world's thinnest electric generator

Researchers from Columbia Engineering and the Georgia Institute of Technology report today that they have made the first experimental observation of piezoelectricity and the piezotronic effect in an atomically thin material, ...

Condensed Matter Aug 8, 2014

Mind-blowing giant crystals—what can they teach us?

Giant gypsum crystals—some of which are in excess of 30 feet long and half a million years old—are found deep within the Naica mine in Chihuahua, Mexico and are renowned for their spectacular beauty. While large gypsum ...

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