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We study a fully backreacted holographic model of a four-dimensional superconductor by including a higher curvature interaction in the bulk action. We study how the critical temperature and the field theory condensate vary in this model and…

High Energy Physics - Theory · Physics 2015-03-17 Massimo Siani

The pair-fluctuation contribution reduces the electrostatic screening length in superconductivity as compared to the normal state. When a conductor possesses a static background charge distribution, superconductivity arises even in the…

Superconductivity · Physics 2014-04-28 Kosuke Odagiri

We define a `hyperconductor' to be a material whose electrical and thermal DC conductivities are infinite at zero temperature and finite at any non-zero temperature. The low-temperature behavior of a hyperconductor is controlled by a…

Strongly Correlated Electrons · Physics 2016-04-06 Eugeniu Plamadeala , Michael Mulligan , Chetan Nayak

We investigate the dependence of the conductivity and the entanglement entropy on the space-time dimensionality $d$ in two holographic superconductors: one dual to a quantum critical point with spontaneous symmetry breaking, and the other…

High Energy Physics - Theory · Physics 2016-01-15 Aurelio Romero-Bermúdez , Antonio M. García-García

We study holographic superconductors in a Ho\v{r}ava-Lifshitz black hole without the condition of the detailed balance. We show that it is easier for the scalar hair to form as the parameter of the detailed balance becomes larger, but…

High Energy Physics - Theory · Physics 2010-06-07 Jiliang Jing , Liancheng Wang , Songbai Chen

We have constructed a holographic superfluid with gauge-axion coupling. Depending on whether the coupling is positive or negative, the system displays metallic or insulating behavior in its normal state. A significant feature of the system…

High Energy Physics - Theory · Physics 2023-09-07 Yan Liu , Xi-Jing Wang , Jian-Pin Wu , Xin Zhang

Within gauge/gravity duality, we consider finite density systems in a helical lattice dual to asymptotically anti-de Sitter space-times with Bianchi VII symmetry. These systems can become an anisotropic insulator in one direction while…

High Energy Physics - Theory · Physics 2015-04-28 Johanna Erdmenger , Benedikt Herwerth , Steffen Klug , Rene Meyer , Koenraad Schalm

The physical mechanism of superconductivity is proposed on the basis of carrier-induced dynamic strain effect. By this new model, superconducting state consists of the dynamic bound state of superconducting electrons, which is formed by the…

Superconductivity · Physics 2010-12-07 Xue-Shu Zhao , Yu-Ru Ge , Xin Zhao , Hong Zhao

We study the gravity duals of striped holographic superconductors in the AdS black hole and AdS soliton backgrounds. We show the dependences of the condensation and the critical temperature/critical chemical potential on the inhomogeneity…

High Energy Physics - Theory · Physics 2015-06-16 Xiao-Mei Kuang , Bin Wang , Xian-Hui Ge

Experiments on hybrid superconducting normal-metal structures have revealed that even in the absence of tunnel junctions the onset of superconductivity can lead to a decrease in the electrical conductance by an amount many orders of…

Superconductivity · Physics 2007-05-23 R. Seviour , C. J. Lambert , M. Leadbeater

The holographic superconductor is the holographic dual of superconductivity, but there is no Meissner effect in the standard holographic superconductor. This is because the boundary Maxwell field is added as an external source and is not…

High Energy Physics - Theory · Physics 2022-09-26 Makoto Natsuume , Takashi Okamura

In arXiv:0803.3295 [hep-th] a holographic black hole solution is discussed which exhibits a superconductor like transition. In the superconducting phase the black holes show infinite DC conductivity. This gives rise to the possibility of…

High Energy Physics - Theory · Physics 2010-06-09 Pallab Basu , Anindya Mukherjee , Hsien-Hang Shieh

We consider the holographic dual of SQCD in the conformal phase. It is based on a higher derivative gravity theory, which ensures the correct field theory anomalies. This is then related to a six dimensional gravity theory via S^1…

High Energy Physics - Theory · Physics 2009-11-11 James Babington

We introduce a simple generalization of the basic holographic superconductor model in which the spontaneous breaking of a global U(1) symmetry occurs via the Stueckelberg mechanism. This more general setting allows tuning features such as…

High Energy Physics - Theory · Physics 2010-05-12 Sebastian Franco , Antonio Garcia-Garcia , Diego Rodriguez-Gomez

In this paper, based on the Sturm-Liouville eigenvalue approach, we analytically investigate the properties of holographic superconductors in the background of pure Einstein and Gauss-Bonnet gravity taking into account the backreaction of…

High Energy Physics - Theory · Physics 2013-07-19 Sunandan Gangopadhyay

We consider a neutral and static black brane background with a probe power-law Maxwell field. Via the membrane paradigm, an expression for the holographic DC conductivity of the dual conserved current is obtained. We also discuss the…

High Energy Physics - Theory · Physics 2018-12-26 Benrong Mu , Peng Wang , Haitang Yang

We present the results of our studies of the entanglement entropy of a superconducting system described holographically as a fully back-reacted gravity system, with a stable ground state. We use the holographic prescription for the…

High Energy Physics - Theory · Physics 2012-06-04 Tameem Albash , Clifford V. Johnson

Both in electroweak theory and QCD, the vacuum in strong magnetic fields develops charged vector condensates once a critical value of the magnetic field is reached. Both ground states have a similar Abrikosov lattice structure and…

High Energy Physics - Phenomenology · Physics 2012-12-04 M. N. Chernodub , J. Van Doorsselaere , H. Verschelde

We study the conductivity from higher derivative electrodynamics in a holographic quantum critical phase (QCP). Two key features of this model are observed. First, a rescaling for the Euclidean frequency by a constant is needed when fitting…

High Energy Physics - Theory · Physics 2019-12-10 Jian-Pin Wu

We study three properties of a holographic superconductor related to conductivities, where momentum relaxation plays an important role. First, we find that there are constraints between electric, thermoelectric and thermal conductivities.…

High Energy Physics - Theory · Physics 2016-11-03 Keun-Young Kim , Kyung Kiu Kim , Miok Park