Regular Article - Theoretical Physics
Higher derivatives driven symmetry breaking in holographic superconductors
Department of Physics, College of Sciences, Northeastern University, 110819, Shenyang, China
2 Center for Gravitation and Cosmology, College of Physical Science and Technology, Yangzhou University, 225009, Yangzhou, China
3 Ministry of Education’s Key Laboratory of Data Analytics and Optimization for Smart Industry, Northeastern University, 110819, Shenyang, China
4 Center for High Energy Physics, Peking University, 100080, Beijing, China
Accepted: 22 January 2020
Published online: 6 February 2020
In this paper, we construct a novel holographic superconductor from higher derivative (HD) gravity involving a coupling between the complex scalar field and the Weyl tensor. This HD coupling term provides a near horizon effective mass squared, which can violates IR Breitenlohner–Freedman (BF) bound by tuning the HD coupling and induces the instability of black brane such that the superconducting phase transition happens. We also study the properties of the condensation and the conductivity in the probe limit. We find that a wider extension of the superconducting energy gap ranging from 4.6 to 10.5 may provide a novel platform to model and interpret the phenomena in the real materials of high temperature superconductor.
© The Author(s) 2020
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