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Entanglement entropy with background gauge fields

HJE Entanglement entropy with background gauge elds Bom Soo Kim 0 1 0 Lexington , KY 40506 , U.S.A 1 Department of Physics and Astronomy, University of Kentucky , USA We study the entanglement

Holographic entanglement entropy of a 1 + 1 dimensional p-wave superconductor

We examine the behavior of entanglement entropy S A EE of a subsystem A in a fully backreacted holographic model of a 1 + 1 dimensional p wave superconductor across the phase transition. For a given temperature, the system goes to a superconducting phase beyond a critical value of the charge density. The entanglement entropy, considered as a function of the charge density at a ...

Holographic renormalization of Einstein-Maxwell-Dilaton theories

We generalize the boundary value problem with a mixed boundary condition that involves the gauge and scalar fields in the context of Einstein-Maxwell-Dilaton theories. In particular, the expectation value of the dual scalar operator can be a function of the expectation value of the current operator. The properties are prevalent in a fixed charge ensemble because the conserved ...

Ward identities for transport in 2+1 dimensions

We use the Ward identities corresponding to general linear transformations, and derive relations between transport coefficients of (2 + 1)-dimensional systems. Our analysis includes relativistic and Galilean invariant systems, as well as systems without boost invariance such as Lifshitz theories. We consider translation invariant, as well as broken translation invariant cases, and ...

Ward identities for Hall transport

We derive quantum field theory Ward identities based on linear area preserving and conformal transformations in 2+1 dimensions. The identities relate Hall viscosities, Hall conductivities and the angular momentum. They apply both for relativistic and non relativistic systems, at zero and at finite temperature. We consider systems with or without translation invariance, and ...

Odd parity transport in non-Abelian superfluids from symmetry locking

We consider relativistic non-Abelian superfluids, where the expectation value of the global symmetry currents relate space and internal indices, thus creating a “locked” phase. Locking a superfluid with SU(2) internal symmetry in 2+1 dimensions breaks parity spontaneously, and introduces parity-odd terms in the constitutive relations. We show that there are qualitatively different ...

Bulk viscosity in holographic Lifshitz hydrodynamics

We compute the bulk viscosity in holographic models dual to theories with Lifshitz scaling and/or hyperscaling violation, using a generalization of the bulk viscosity formula derived in arXiv:1103.1657 from the null focusing equation. We find that only a class of models with massive vector fields are truly Lifshitz scale invariant, and have a vanishing bulk viscosity. For other ...

Lifshitz field theories at non-zero temperature, hydrodynamics and gravity

Carlos Hoyos 0 Bom Soo Kim 0 Yaron Oz 0 0 Raymond and Beverly Sackler School of Physics and Astronomy, Tel-Aviv University , Tel-Aviv 69978, Israel We consider a covariant formulation of field

Effective holographic theories for low-temperature condensed matter systems

The IR dynamics of effective holographic theories capturing the interplay between charge density and the leading relevant scalar operator at strong coupling are analyzed. Such theories are parameterized by two real exponents (γ, δ) that control the IR dynamics. By studying the thermodynamics, spectra and conductivities of several classes of charged dilatonic black hole solutions ...