(Phys.org)—Dissipation and decoherence are typically considered harmful to solar cell efficiency, but in a new paper scientists have shown that these effects paradoxically make the exciton lifetime in semiconducting carbon ...
(Phys.org) —It was another interesting week as a team of physicists from the U.S., Italy and the U.K. designed a zero-friction quantum engine, showing an example of a quantum engine that if built would be "super-adiabatic"—an ...
(Phys.org) —By using voltage-generated stress to switch between two magnetic states, researchers have designed a new non-volatile memory with extremely high energy efficiency—about two orders of magnitude higher than ...
(PhysOrg.com) -- In the past decade, regenerative braking systems have become increasingly popular, recovering energy that would otherwise be lost through braking. However, another energy recovery mechanism that is still ...
If you use a vacuum-insulated thermos to help keep your coffee hot, you may know it's a good insulator because heat energy has a hard time moving through empty space. Vibrations of atoms or molecules, which carry thermal ...
Quantum Physics
Dec 11, 2019
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The world within a cell is a chaotic space, where the quantity and movement of molecules and proteins are in constant flux. Trying to predict how widely a protein or process may fluctuate is essential to knowing how well ...
General Physics
Mar 21, 2016
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In a breakthrough for energy-efficient computing, engineers at the University of California, Berkeley, have shown for the first time that magnetic chips can operate with the lowest fundamental level of energy dissipation ...
General Physics
Mar 11, 2016
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MIT researchers uncover the secrets behind a marine creature's defensive armor—one that is exceptionally tough, yet optically clear.
Nanomaterials
Mar 30, 2014
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A team of researchers from the University of California, Riverside's Bourns College of Engineering have solved a problem that previously presented a serious hurdle for the use of graphene in electronic devices.
Nanomaterials
Sep 3, 2013
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(PhysOrg.com) -- Falling raindrops produce friction as they drop through the atmosphere to the ground, and this dissipates the kinetic energy, converting it into diffuse heat. Now researchers in the US have used recently-obtained ...
