Holographic p-wave superconductors from Gauss-Bonnet gravity
Holographic p-wave superconductors from Gauss-Bonnet gravity
复制标题
高斯-邦尼重力的全息 p 波超导体
DOI:
10.1103/physrevd.82.066007
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发表时间:
2010-07
期刊:
影响因子:
--
通讯作者:
Zhang, Hai-Qing
中科院分区:
文献类型:
--
作者:
Cai, Rong-Gen;Nie, Zhang-Yu;Zhang, Hai-Qing
We study the holographic p-wave superconductors in a five-dimensional Gauss-Bonnet gravity with an SU(2) Yang-Mills gauge field. In the probe approximation, we find that when the Gauss-Bonnet coefficient grows, the condensation of the vector field becomes harder, both the perpendicular and parallel components, with respect to the direction of the condensation, of the anisotropic conductivity decrease. We also study the mass of the quasiparticle excitations, the gap frequency and the DC conductivities of the p-wave superconductor. All of them depend on the Gauss-Bonnet coefficient. In addition, we observe a strange behavior for the condensation and the relation between the gap frequency and the mass of quasiparticles when the Gauss-Bonnet coefficient is larger than 9/100, which is the upper bound for the Gauss-Bonnet coefficient from the causality of the dual field theory.
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