Higher derivatives driven symmetry breaking in holographic superconductors

Li, Haili; Fu, Guoyang; Liu, Yan; Wu, Jian-Pin; Zhang, Jingfei

doi:10.1140/epjc/s10052-020-7670-y

Cited by 2 publications

(2 citation statements)

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“…It suggests that the condensation becomes harder when the model parameters γ or γ 1 decrease. This result is also consis- tent with that of s-wave superconductor from higher derivative theory [31,32,49].…”

Section: Condensationsupporting

confidence: 84%

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Holographic p-wave superconductivity from higher derivative theory

Liu

et al. 2021

Eur. Phys. J. C

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We construct a holographic SU(2) p-wave superconductor model with Weyl corrections. The high derivative (HD) terms do not seem to spoil the generation of the p-wave superconducting phase. We mainly study the properties of AC conductivity, which is absent in holographic SU(2) p-wave superconductor with Weyl corrections. The conductivities in superconducting phase exhibit obvious anisotropic behaviors. Along y direction, the conductivity $$\sigma _{yy}$$ σ yy is similar to that of holographic s-wave superconductor. The superconducting energy gap exhibits a wide extension. For the conductivity $$\sigma _{xx}$$ σ xx along x direction, the behaviors of the real part in the normal state are closely similar to that of $$\sigma _{yy}$$ σ yy . However, the anisotropy of the conductivity obviously shows up in the superconducting phase. A Drude-like peak at low frequency emerges in $$Re\sigma _{xx}$$ R e σ xx once the system enters into the superconducting phase, regardless of the behaviors in normal state.

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Section: Condensationsupporting

confidence: 84%

“…It implies a larger superconducting energy gap ω g /T c in the frequency dependent conductivity along y direction, which shall be explicitly demonstrated below. These observations are qualitatively similar to that of the holographic s-wave superconductor from higher derivative theory [31,32,49].…”

Section: Condensationsupporting

confidence: 78%