Ginzburg-Landau effective action for a fluctuating holographic superconductor

@article{Bu2021GinzburgLandauEA,
  title={Ginzburg-Landau effective action for a fluctuating holographic superconductor},
  author={Yanyan Bu and Mitsutoshi Fujita and Shu Lin},
  journal={Journal of High Energy Physics},
  year={2021}
}
Abstract Under holographic prescription for Schwinger-Keldysh closed time contour for non-equilibrium system, we consider fluctuation effect of the order parameter in a holographic superconductor model. Near the critical point, we derive the time-dependent Ginzburg-Landau effective action governing dynamics of the fluctuating order parameter. In a semi-analytical approach, the time-dependent Ginzburg-Landau action is computed up to quartic order of the fluctuating order parameter, and first… Expand
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References

SHOWING 1-10 OF 97 REFERENCES
Ginzburg-Landau Approach to Holographic Superconductivity
A bstractWe construct a family of minimal phenomenological models for holographic superconductors in d = 4 + 1 AdS spacetime and study the effect of scalar and gauge field fluctuations. By making aExpand
Ginzburg-Landau theory of a holographic superconductor
The general Ginzburg-Landau formulation of a holographic superconductor is developed near the transition temperature in the probe limit for two kinds of conformal dimension. Below the transitionExpand
Keldysh Ginzburg-Landau action of fluctuating superconductors
We derive Ginzburg-Landau action by systematically integrating out electronic degrees of freedom in the framework of the Keldysh nonlinear $\ensuremath{\sigma}$-model of disordered superconductors.Expand
All order effective action for charge diffusion from Schwinger-Keldysh holography
An effective action for diffusion of a conserved $U(1)$ charge is derived to all orders in the derivative expansion within a holographic model dual to the Schwinger-Keldysh closed time path. AExpand
A prescription for holographic Schwinger-Keldysh contour in non-equilibrium systems
We develop a prescription for computing real-time correlation functions defined on a Schwinger-Keldysh contour for non-equilibrium systems using gravity. The prescription involves a new analyticExpand
Holographic Schwinger-Keldysh effective field theories
A bstractWe construct a holographic dual of the Schwinger-Keldysh effective action for the dissipative low-energy dynamics of relativistic charged matter at strong coupling in a fixed thermalExpand
Kibble-Zurek scaling in a holographic p -wave superconductor
We study the Kibble-Zurek mechanism in a 2d holographic p-wave superconductor model with a homogeneous source quench on the critical point. We derive, on general grounds, the scaling of theExpand
Analytic holographic superconductor
We investigate a holographic superconductor that admits an analytic treatment near the phase transition. In the dual 3+1-dimensional field theory, the phase transition occurs when a scalar operatorExpand
Schwinger-Keldysh propagators from AdS/CFT correspondence
We demonstrate how to compute real-time Green's functions for a class of finite temperature field theories from their AdS gravity duals. In particular, we reproduce the 2 ? 2 Schwinger-Keldysh matrixExpand
Topological sigma models & dissipative hydrodynamics
A bstractWe outline a universal Schwinger-Keldysh effective theory which describes macroscopic thermal fluctuations of a relativistic field theory. The basic ingredients of our construction areExpand
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5
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