Gauss-Bonnet holographic superconductors

Luke Barclay, Ruth Gregory, Sugumi Kanno, Paul Sutcliffe

Research output: Contribution to journalArticlepeer-review

66 Citations (Scopus)

Abstract

We study holographic superconductors in five dimensional Einstein-Gauss-Bonnet gravity both numerically and analytically. We find the critical temperature of the superconductor decreases as backreaction is increased, although the effect of the Gauss-Bonnet coupling is more subtle: the critical temperature first decreases then increases as the coupling tends towards the Chern-Simons value in a backreaction dependent fashion. We compute the conductivity of the system, finding the energy gap, and show that the effect of both backreaction and higher curvature is to increase the gap ratio ωg/Tc, thus there is no universal relation for these superconductors.

Original languageEnglish
Article number29
JournalJournal of High Energy Physics
Volume2010
Issue number12
DOIs
Publication statusPublished - 2010
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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