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Simple fluid with broken time-reversal invariance

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2022

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Zippelius, Annette

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https://doi.org/10.1103/PhysRevE.106.034604
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http://arxiv.org/abs/2204.09492

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Physical Review E. American Physical Society (APS). 2022, 106(3), 034604. ISSN 2470-0045. eISSN 2470-0053. Available under: doi: 10.1103/PhysRevE.106.034604

Zusammenfassung

We characterize a system of hard spheres with a simple collision rule that breaks time-reversal symmetry but conserves energy. The collisions lead to an achiral, isotropic, and homogeneous stationary state whose properties are determined in simulations and compared to an approximate theory originally developed for elastic hard spheres. In the nonequilibrium fluid state, velocities are correlated, a phenomenon known from other nonequilibrium stationary states. The correlations are long-ranged decaying like 1/rD in D dimensions. Such correlations are expected on general grounds far from equilibrium and had previously been observed in driven or nonstationary systems.

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530 Physik

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nonequilibrium statistical mechanics, active matter, continuum particle models

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ISO 690GRIMM, Niklas, Annette ZIPPELIUS, Matthias FUCHS, 2022. Simple fluid with broken time-reversal invariance. In: Physical Review E. American Physical Society (APS). 2022, 106(3), 034604. ISSN 2470-0045. eISSN 2470-0053. Available under: doi: 10.1103/PhysRevE.106.034604
BibTex
@article{Grimm2022-09Simpl-58888,
  year={2022},
  doi={10.1103/PhysRevE.106.034604},
  title={Simple fluid with broken time-reversal invariance},
  number={3},
  volume={106},
  issn={2470-0045},
  journal={Physical Review E},
  author={Grimm, Niklas and Zippelius, Annette and Fuchs, Matthias},
  note={Article Number: 034604}
}
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