Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/85172
Title: Two-temperature Brownian dynamics of a particle in a confining potential
Authors: Mancois, Vincent
Marcos, Bruno
Viot, Pascal
Wilkowski, David
Keywords: Stochastic
Brownian
Issue Date: 2018
Source: Mancois, V., Marcos, B., Viot, P., & Wilkowski, D. (2018). Two-temperature Brownian dynamics of a particle in a confining potential. Physical Review E, 97(5), 052121-.
Series/Report no.: Physical Review E
Abstract: We consider the two-dimensional motion of a particle in a confining potential, subject to Brownian orthogonal forces associated with two different temperatures. Exact solutions are obtained for an asymmetric harmonic potential in the overdamped and underdamped regimes. For more general confining potentials, a perturbative approach shows that the stationary state exhibits some universal properties. The nonequilibrium stationary state is characterized with a nonzero orthoradial mean current, corresponding to a global rotation of the particle around the center. The rotation is due to two broken symmetries: two different temperatures and a mismatch between the principal axes of the confining asymmetric potential and the temperature axes. We confirm our predictions by performing a Brownian dynamics simulation. Finally, we propose to observe this effect on a laser-cooled atomic gas.
URI: https://hdl.handle.net/10356/85172
http://hdl.handle.net/10220/45141
ISSN: 2470-0045
DOI: http://dx.doi.org/10.1103/PhysRevE.97.052121
Rights: © 2018 American Physical Society. This paper was published in Physical Review E and is made available as an electronic reprint (preprint) with permission of American Physical Society. The published version is available at: [http://dx.doi.org/10.1103/PhysRevE.97.052121]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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