Nonequilibrium statistical mechanics is a research area focused on the microscopic foundations and emergent behavior of systems driven away from thermodynamic equilibrium by external forces, gradients, or time-dependent protocols. It extends equilibrium statistical mechanics by analyzing transport processes, relaxation dynamics, fluctuation–dissipation relations, and entropy production in classical and quantum many-body systems. The field encompasses linear and nonlinear response theory, fluctuation theorems, large deviation theory, and stochastic thermodynamics, providing rigorous frameworks to quantify irreversibility, work, heat, and efficiency in driven systems ranging from molecular-scale engines and soft matter to plasmas and complex networks.
A new model to predict how language changes over time has been developed by a statistical physicist at the University of Portsmouth. The model is a step towards understanding the "statistical physics of language," a scientific ...
General Physics
May 5, 2026
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Quantum technology has promising potential to revolutionize how large and complex amounts of information are processed. While already in use primarily in laboratory and research settings globally, quantum technologies are ...
Condensed Matter
May 4, 2026
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93
A joint theoretical study by the University of Innsbruck and Zhejiang University has uncovered the microscopic origin of a striking quantum phenomenon: a periodically driven gas of ultracold atoms that simply refuses to heat ...
Quantum Physics
Apr 20, 2026
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A research team has, for the first time in the world, elucidated the microscopic mechanism by which quantum order is lost and collapses in "open quantum environments" existing in nature. Since perfectly isolated quantum systems ...
Quantum Physics
Apr 4, 2026
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223
Quantum states are notoriously fragile, and can be destroyed simply through interactions, measurements, and exposure to their surrounding environments. In a new theoretical study published in Physical Review X, Rohan Mittal ...
Physicists have developed a new theoretical framework which unifies a wide array of seemingly unrelated "Mpemba effects": counterintuitive cases where systems driven further from equilibrium relax faster than those closer ...
Living cells are fundamentally nonequilibrium systems, meaning they constantly spend energy through seemingly one-way, irreversible processes, such as transcribing DNA into RNA, to keep life going. But how that irreversibility ...
Cell & Microbiology
Mar 22, 2026
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20
"Glass" has a unique and distinct meaning in physics—one that refers not just to the transparent material we associate with window glass. Instead, it refers to any system that looks solid but is not in true equilibrium and ...
Soft Matter
Mar 2, 2026
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Preserving quantum information is key to developing useful quantum computing systems. But interacting quantum systems are chaotic and follow laws of thermodynamics, eventually leading to information loss. Physicists have ...
Quantum Physics
Feb 27, 2026
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In many quantum materials—materials with unusual electrical and magnetic properties driven by quantum mechanical effects—electrons can organize themselves into Landau levels. Landau levels are essentially quantized energy ...
