Universality of a Critical Magnetic Field in a Holographic Superconductor. (April 2015)

• Record Type: Journal Article
• Authors: Momeni, D.; Myrzakulov, R.
• Is Part Of: Chinese physics letters. Volume 32:Number 4(2015:Apr.)
• Publication Date: 2015-04
• Subjects: 74.62.Bf -- 74.25.Ha -- 11.25.Tq -- 44.05.+e; Physics -- Periodicals; Electronic journals; 530.05
• DOI: 10.1088/0256-307X/32/4/047401
• Languages: English
• ISSNs: 0256-307X

Abstract

Abstract : We study aspects of holographic superconductors analytically in the presence of a constant external magnetic field. It is shown that the critical temperature and the critical magnetic field can be calculated at nonzero temperature. We detect the Meissner effect in such superconductors. A universal relation between black hole mass M and critical magnetic field Hc is proposed to be H c M 2 / 3 ≤ 0.687365 . We also discuss some aspects of phase transition in terms of black hole entropy and Bekenstein's entropy to the energy upper bound.