Greybody factors of holographic superconductors with $$z=2$$ z=2 Lifshitz scaling

Autor: Huriye Gürsel, İzzet Sakallı
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: European Physical Journal C: Particles and Fields, Vol 80, Iss 3, Pp 1-11 (2020)
Druh dokumentu: article
ISSN: 1434-6044
1434-6052
DOI: 10.1140/epjc/s10052-020-7791-3
Popis: Abstract We study the quasinormal modes and thermal radiation of massless spin-0 field perturbations in the background of four-dimensional (4D) non-Abelian charged Lifshitz black branes with $$z=2$$ z=2 hyperscaling violation, which correspond to systems with superconducting fluctuations. After having an analytical solution to the Klein–Gordon equation, we obtain exact quasinormal modes that are purely imaginary. Therefore, there is no oscillatory behavior in the perturbations that guarantees the mode stability of these solutions. We also study the greybody factors, absorption cross-section, and decay rate of the non-Abelian charged Lifshitz black branes. We derive their analytical expressions and then investigate the correspondence in the strongly coupled dual theory. This study might shed light on the mechanism governing the high-temperature superconductors in condensed matter physics.
Databáze: Directory of Open Access Journals
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