Far-from-equilibrium processes without net thermal exchange via energy sorting

The Journal of Chemical Physics
J M G Vilar, J Miguel Rubí

Abstract

Many important processes at the microscale require far-from-equilibrium conditions to occur, as in the functioning of mesoscopic bioreactors, nanoscopic rotors, and nanoscale mass conveyors. Achieving such conditions, however, is typically based on energy inputs that strongly affect the thermal properties of the environment and the controllability of the system itself. Here, we present a general class of far-from-equilibrium processes that suppress the net thermal exchange with the environment by maintaining the Maxwell-Boltzmann velocity distribution intact. This new phenomenon, referred to as ghost equilibrium, results from the statistical cancellation of superheated and subcooled nonequilibrated degrees of freedom that are autonomously generated through a microscale energy sorting process. We provide general conditions to observe this phenomenon and study its implications for manipulating energy at the microscale. The results are applied explicitly to two mechanistically different cases, an ensemble of rotational dipoles and a gas of trapped particles, which encompass a great variety of common situations involving both rotational and translational degrees of freedom.

References

Jan 1, 1994·Annual Review of Biophysics and Biomolecular Structure·K Svoboda, S M Block
Feb 14, 1998·Nature·T ElstonG Oster
Jun 8, 1992·Physical Review Letters·A Simon, A Libchaber
Sep 20, 2001·Proceedings of the National Academy of Sciences of the United States of America·J M Vilar, J M Rubi
Oct 26, 2002·Physical Review Letters·Dieter Braun, Albert Libchaber
Sep 1, 1955·Psychological Review·E C TOLMAN
Nov 13, 2003·Physical Review Letters·Dieter BraunAlbert Libchaber
May 1, 2004·Nature·B C ReganA Zettl
Oct 28, 2006·Science·Y HanA G Yodh
Sep 4, 2008·Physical Review Letters·Fernando BresmeSigne Kjelstrup
Apr 28, 2009·Physical Review Letters·Alessandro TroisiDenis Andrienko
Aug 8, 2009·Physical Review Letters·M BonaldiJ-P Zendri
May 22, 2010·Science·Tongcang LiMark G Raizen

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Citations

Mar 17, 2015·The Journal of Chemical Physics·Luciano C LapasFernando A Oliveira

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