Higher-dimensional holographic superconductors in Born–Infeld electrodynamics and f(R) gravity

Autor: Alexandar Roussev
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: European Physical Journal C: Particles and Fields, Vol 84, Iss 2, Pp 1-11 (2024)
Druh dokumentu: article
ISSN: 1434-6052
DOI: 10.1140/epjc/s10052-024-12548-5
Popis: Abstract In this paper, the properties of higher dimensional holographic superconductors are studied in the background of f(R) gravity and Born–Infeld electrodynamics. A specific model of f(R) gravity is considered, allowing a perturbative approach to the problem. The Sturm–Liouville eigenvalue problem is used to analytically calculate the critical temperature and the condensation operator. An expression for the critical temperature in terms of the charge density including the correction from modified gravity is derived. It is seen that the higher values of the Born–Infeld coupling parameter make the condensation harder to form. In addition, the limiting values of this parameter, above which Born–Infeld electrodynamics cannot be applied, are found for different dimensions. Another interesting property is that the increasing modifications of f(R) gravity lead to larger values of the critical temperature and a decrease in the condensation gap, which means that the condensation is easier to form.
Databáze: Directory of Open Access Journals
Nepřihlášeným uživatelům se plný text nezobrazuje