2026-04-27T14:21:07Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/103222025-03-14T01:05:28Zcom_10259.4_2557com_10259_5086com_10259_2604col_10259.4_2558
Muñoz Castañeda, José María
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Santamaría Sanz, Lucía
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Donaire, Manuel
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600
Tello Fraile, Marcos
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2025-03-13T10:27:28Z
2025-03-13T10:27:28Z
2020-08
1434-6044
http://hdl.handle.net/10259/10322
10.1140/epjc/s10052-020-8348-1
1434-6052
In this paper we study the system of a scalar quantum field confined between two plane, isotropic, and homogeneous parallel plates at thermal equilibrium. We represent the plates by the most general lossless and frequency-independent boundary conditions that satisfy the conditions of isotropy and homogeneity and are compatible with the unitarity of the quantum field theory. Under these conditions we compute the thermal correction to the quantum vacuum energy as a function of the temperature and the parameters encoding the boundary condition. The latter enables us to obtain similar results for the pressure between plates and the quantum thermal correction to the entropy. We find out that our system is thermodynamically stable for any boundary conditions, and we identify a critical temperature below which certain boundary conditions yield attractive, repulsive, and null Casimir forces.
The authors are grateful to the Spanish Government-MINECO (MTM2014- 57129-C2-1-P) and the Junta de Castilla y León (BU229P18, VA137G18 and VA057U16) for the financial support received. LSS is grateful to the Spanish Government-MINECO for the FPU-fellowships programme (FPU18/00957). MTF acknowledges financial support from the European Social Fund, the Operational Programme of Junta de Castilla y León and the regional Ministry of Education.
application/pdf
eng
Springer
The European Physical Journal C. 2020, V. 80, n. 793
https://doi.org/10.1140/epjc/s10052-020-8348-1
Atribución 4.0 Internacional
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
Física
Matemáticas
Physics
Mathematics
Thermal Casimir effect with general boundary conditions
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
The European Physical Journal C
80
793
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oai:riubu.ubu.es:10259/10322
2025-03-14 02:05:28.955
Repositorio Institucional de la Universidad de Burgos
bubrep@ubu.es
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