Amb motiu del tancament d'estiu, la validació de documents es reprendrà a partir del 28 d'agost de 2026. Disculpeu les molèsties.
Con motivo del cierre de verano, la validación de documentos se reanudará a partir del 28 de agosto de 2026. Disculpad las molestias
Due to the summer closure, document validation will resume starting August 28, 2026. We apologize for any inconvenience.

Files

685458.pdf (323.54 KB)

Document type

Article

Version

Accepted version

Publication date

2019-01-18

All rights reserved

Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/128145

Equilibrium and nonequilibrium thermodynamics of a photon gas in the near field

Journal Title

Authors

Director/Tutor

Journal ISSN

Volume Title

Related resource

https://doi.org/10.1140/epjst/e2018-800053-9

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.

Subject

Termodinàmica del desequilibri, Fotons

Subject (English)

Nonequilibrium thermodynamics, Photons

Citation

Collections

Articles publicats en revistes (Física de la Matèria Condensada)

Citation

PÉREZ MADRID, Agustín, LAPAS, Luciano Calheiros and RUBÍ CAPACETI, José Miguel. Equilibrium and nonequilibrium thermodynamics of a photon gas in the near field. European Physical Journal-Special Topics. 2019. ISSN 1951-6355. [consulted: 11 of August of 2026]. Available at: https://hdl.handle.net/2445/128145

Export metadata

JSON - METS

Share record