Lorentz-violating scenarios in a thermal reservoir
Departamento de Física, Campus do Pici, Universidade Federal do Ceará (UFC), C.P. 6030, 60455-760, Fortaleza, CE, Brazil
Accepted: 12 April 2021
Published online: 20 April 2021
In this work, we analyze the thermodynamic properties of the graviton and the generalized model involving anisotropic Podolsky and Lee–Wick terms with Lorentz violation. We build up the so-called partition function from the accessible states of the system seeking the following thermodynamic functions: spectral radiance, mean energy, Helmholtz free energy, entropy and heat capacity. Besides, we verify that when the temperature rises, the spectral radiance tends to attenuate for fixed values of . Notably, when parameter increases, the spectral radiance weakens until reaching a flat characteristic. Finally, for both theories, we perform the calculation of the modified black body radiation and the correction to the Stefan–Boltzmann law in the inflationary era of the universe.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021