Physics of our days

Rigorous results of nonequilibrium statistical physics and their experimental verification

 a, b
a Kapitza Institute of Physical Problems, Russian Academy of Sciences, ul. Kosygina 2, Moscow, 117334, Russian Federation
b Dipartimento di Fisica, Università di Trento and BDC Center, Povo, Trento, I-38050, Italy

Rigorous relations of nonequilibrium statistical physics are discussed. An arbitrary system brought into a strongly nonequilibrium state by an external time-dependent impact is considered. Based on the Hamiltonian formalism of classical mechanics, the Bochkov—Kuzovlev equality, the Jarzynski equality, and Crooks reversal relations valid for fluctuations in the work done on a system are derived. Verification of these equalities in mechanical experiments with a torsion pendulum and biological objects (folded ribonucleic acids) is described.

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Fulltext is also available at DOI: 10.3367/UFNe.0181.201106d.0647
PACS: 05.20.−y, 05.40.−a, 05.70.Ln (all)
DOI: 10.3367/UFNe.0181.201106d.0647
Citation: Pitaevskii L P "Rigorous results of nonequilibrium statistical physics and their experimental verification" Phys. Usp. 54 625–632 (2011)
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Received: 18th, April 2011

Оригинал: Питаевский Л П «Строгие результаты неравновесной статистической физики и их экспериментальная проверка» УФН 181 647–654 (2011); DOI: 10.3367/UFNr.0181.201106d.0647

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