Statistical Mechanics where Newton’s Third Law is Broken

There is a variety of situations in which Newton’s third law is violated. Generally, the action-reaction symmetry can be broken for mesoscopic particles, when their effective interactions are mediated by a nonequilibrium environment. Here, we investigate different classes of nonreciprocal interactio...

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Main Authors: A. V. Ivlev, J. Bartnick, M. Heinen, C.-R. Du, V. Nosenko, H. Löwen
Format: Article
Language:English
Published: American Physical Society 2015-03-01
Series:Physical Review X
Online Access:http://doi.org/10.1103/PhysRevX.5.011035
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author A. V. Ivlev
J. Bartnick
M. Heinen
C.-R. Du
V. Nosenko
H. Löwen
author_facet A. V. Ivlev
J. Bartnick
M. Heinen
C.-R. Du
V. Nosenko
H. Löwen
author_sort A. V. Ivlev
collection DOAJ
description There is a variety of situations in which Newton’s third law is violated. Generally, the action-reaction symmetry can be broken for mesoscopic particles, when their effective interactions are mediated by a nonequilibrium environment. Here, we investigate different classes of nonreciprocal interactions relevant to real experimental situations and present their basic statistical mechanics analysis. We show that in mixtures of particles with such interactions, distinct species acquire distinct kinetic temperatures. In certain cases, the nonreciprocal systems are exactly characterized by a pseudo-Hamiltonian; i.e., being intrinsically nonequilibrium, they can nevertheless be described in terms of equilibrium statistical mechanics. Our results have profound implications, in particular, demonstrating the possibility to generate extreme temperature gradients on the particle scale. We verify the principal theoretical predictions in experimental tests performed with two-dimensional binary complex plasmas.
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spelling doaj.art-7ac1d38f99694c92bd28ec99dc00e9712022-12-22T04:03:34ZengAmerican Physical SocietyPhysical Review X2160-33082015-03-015101103510.1103/PhysRevX.5.011035Statistical Mechanics where Newton’s Third Law is BrokenA. V. IvlevJ. BartnickM. HeinenC.-R. DuV. NosenkoH. LöwenThere is a variety of situations in which Newton’s third law is violated. Generally, the action-reaction symmetry can be broken for mesoscopic particles, when their effective interactions are mediated by a nonequilibrium environment. Here, we investigate different classes of nonreciprocal interactions relevant to real experimental situations and present their basic statistical mechanics analysis. We show that in mixtures of particles with such interactions, distinct species acquire distinct kinetic temperatures. In certain cases, the nonreciprocal systems are exactly characterized by a pseudo-Hamiltonian; i.e., being intrinsically nonequilibrium, they can nevertheless be described in terms of equilibrium statistical mechanics. Our results have profound implications, in particular, demonstrating the possibility to generate extreme temperature gradients on the particle scale. We verify the principal theoretical predictions in experimental tests performed with two-dimensional binary complex plasmas.http://doi.org/10.1103/PhysRevX.5.011035
spellingShingle A. V. Ivlev
J. Bartnick
M. Heinen
C.-R. Du
V. Nosenko
H. Löwen
Statistical Mechanics where Newton’s Third Law is Broken
Physical Review X
title Statistical Mechanics where Newton’s Third Law is Broken
title_full Statistical Mechanics where Newton’s Third Law is Broken
title_fullStr Statistical Mechanics where Newton’s Third Law is Broken
title_full_unstemmed Statistical Mechanics where Newton’s Third Law is Broken
title_short Statistical Mechanics where Newton’s Third Law is Broken
title_sort statistical mechanics where newton s third law is broken
url http://doi.org/10.1103/PhysRevX.5.011035
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