Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/128145
Title: Equilibrium and nonequilibrium thermodynamics of a photon gas in the near field
Author: Pérez Madrid, Agustín
Lapas, L. C.
Rubí Capaceti, José Miguel
Keywords: Termodinàmica del desequilibri
Fotons
Nonequilibrium thermodynamics
Photons
Issue Date: 18-Jan-2019
Publisher: EDP Sciences
Abstract: In this paper, we study the near-field thermodynamics of a photon gas at equilibrium as well as out-of-equilibrium in the presence of dissipative effects. As a consequence of Heisenberg's uncertainty principle, we are able to eliminate the low-frequency modes in both cases, providing an analytical expression for the near-field entropy. In addition, we obtain the entropic-force contributions to the Casimir effect. At zero temperature the well-known 1/l^4 behavior of the pressure is obtained. In the nonequilibrium case, we compute the entropy production, showing that the excess of heat in each bodies must be dissipated into the respective thermal reservoirs.
Note: Versió postprint del document publicat a: https://doi.org/10.1140/epjst/e2018-800053-9
It is part of: European Physical Journal-Special Topics, 2019
Related resource: https://doi.org/10.1140/epjst/e2018-800053-9
URI: http://hdl.handle.net/2445/128145
ISSN: 1951-6355
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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