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Influence of the pseudoscalar condensate gradient on the cooling regime of compact stars
A. A. Andrianovab, V. A. Andrianova, D. Espriub, S. S. Kolevatova a Saint Petersburg State University, St. Petersburg, Russia
b Departament d'Estructura i Constituents de la Matèria and Institut de Ciències del Cosmos, Universitat de Barcelona Martì i Franquès 1, Barcelona, Spain
Abstract:
We consider the processes in compact stars that arise during the potential formation of a pseudoscalar condensate in finite volumes. We do not propose specific hypotheses about the nature of this condensate. Considering that in the regions with a changing pseudoscalar density, photon propagation can be described in the framework of Maxwell–Chern–Simons electrodynamics, we find the reflection/transmission coefficients for regions with different densities. We study the fermion spectrum in the presence of an axial field considering the pseudoscalar condensate gradient. We also study the influence of the modified photon and fermion spectra on the cooling process of compact stars.
Keywords:
compact star, pseudoscalar condensate, Maxwell–Chern–Simons electrodynamics, edge effect.
Received: 23.12.2015 Revised: 17.03.2016
Citation:
A. A. Andrianov, V. A. Andrianov, D. Espriu, S. S. Kolevatov, “Influence of the pseudoscalar condensate gradient on the cooling regime of compact stars”, TMF, 190:2 (2017), 207–225; Theoret. and Math. Phys., 190:2 (2017), 177–192
Linking options:
https://www.mathnet.ru/eng/tmf9134https://doi.org/10.4213/tmf9134 https://www.mathnet.ru/eng/tmf/v190/i2/p207
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