Search results for nonequilibrium dynamics

General Physics Aug 29, 2018

Electric polarization in the macroscopic world and electrons moving at atomic scales

Femtosecond X-ray experiments in combination with a new theoretical approach establish a direct connection between electric properties in the macroscopic world and electron motions on the time and length scale of atoms. The ...

Quantum Physics Aug 4, 2014

Study explains how Maxwell's demon uses mutual information to extract work

(Phys.org) —Maxwell's demon, the hypothetical doorman that controls how particles travel between two chambers in an attempt to decrease entropy, is at its heart a feedback-controlled system. The demon makes measurements ...

Nanophysics Apr 23, 2019

Electron-phonon instability in graphene revealed by global and local noise probes

Understanding nonequilibrium phenomena to effectively control it is an outstanding challenge in science and engineering. In a recent study, Trond. I. Andersen and colleagues at the departments of physics, chemistry, materials ...

General Physics Jan 3, 2013

How computers push on the molecules they simulate

Because modern computers have to depict the real world with digital representations of numbers instead of physical analogues, to simulate the continuous passage of time they have to digitize time into small slices. This kind ...

Quantum Physics Sep 10, 2020

Phasing quantum annealers into experiments from nonequilibrium physics

It is established that matter can transition between different phases when certain parameters, such as temperature, are changed. Although phase transitions are common (like water turning into ice in a freezer), the dynamics ...

Electronics & Semiconductors Dec 7, 2018

New model for assessing the effect of ionizing radiation on microelectronic devices

The main trend in the development of hardware components for digital and analog electronic equipment is to reduce the size of the active regions of diode and transistor structures. This can be achieved by improving the performance ...

Mathematics Jul 5, 2023

Team develops a solution for temporal asymmetry

Life, from the perspective of thermodynamics, is a system out of equilibrium, resisting tendencies towards increasing their levels of disorder. In such a state, the dynamics are irreversible over time. This link between the ...

Plasma Physics Feb 13, 2023

New model of quark-gluon plasma solves a long-standing discrepancy between theory and data

Research in fundamental science has revealed the existence of quark-gluon plasma (QGP)—a newly identified state of matter—as the constituent of the early universe. Known to have existed a microsecond after the Big Bang, ...

Biochemistry Jul 25, 2023

AI-enabled portable e-nose sniffs out harmful molecules

Consider this—there is no cheap, at-home device that can tell you milk has gone bad faster than your nose. One whiff and you know that the milk has gone rancid. Humans have created technologies that allow us to see distant ...

Quantum Physics May 15, 2019

Digital quantum simulators can be astonishingly robust

In solving quantum-physical problems in many-body systems, such as predicting material properties, conventional computers rapidly reach the limits of their capacity. Digital quantum simulators might help, but until now they ...

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