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Building a Holographic Superconductor with a Scalar Field Coupled Kinematically to Einstein Tensor

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arxiv 1607.04928 v3 pith:6KX6QCSW submitted 2016-07-18 hep-th gr-qc

Xiao-Mei Kuang , Eleftherios Papantonopoulos This is my paper · ORCID
classification hep-thgr-qc
keywords fieldcouplingscalarcondensationeinsteingravitytensorcoupled
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We study the holographic dual description of a superconductor in which the gravity sector consists of a Maxwell field and a charged scalar field which except its minimal coupling to gravity it is also coupled kinematically to Einstein tensor. As the strength of the new coupling is increased, the critical temperature below which the scalar field condenses is lowering, the condensation gap decreases faster than the temperature, the width of the condensation gap is not proportional to the size of the condensate and at low temperatures the condensation gap tends to zero for the strong coupling. These effects which are the result of the presence of the coupling of the scalar field to the Einstein tensor in the gravity bulk, provide a dual description of impurities concentration in a superconducting state on the boundary.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. AC charge transport in holographic Horndeski gravity

    hep-th 2019-08 conditional novelty 5.0 of 10

    A holographic Horndeski model is found to exhibit a temperature-driven metal-semiconductor crossover, with AC conductivity that fits the Drude formula in the slow-relaxation regime.

  2. Near extremal RN-AdS control of holographic Josephson transport

    hep-th 2026-06 unverdicted novelty 4.0 of 10

    Proposes a holographic SNS junction in Einstein-Maxwell-charged-scalar AdS4 theory where the near-extremal RN-AdS throat supplies an infrared scaling mechanism for the Josephson critical current and phase stiffness af...

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