Dynamical black holes and expanding plasmas

Figueras, Pau; Hubeny, Veronika E.; Rangamani, Mukund; Ross, Simon F.

doi:10.1088/1126-6708/2009/04/137

Cited by 88 publications

(141 citation statements)

References 42 publications

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“…In what follows, we will closely follow [41]. For the background in (2.13) the vectors tangent to the ingoing and outgoing null geodesics are given by…”

Section: Jhep09(2017)127mentioning

confidence: 99%

Holographic entanglement entropy in time dependent Gauss-Bonnet gravity

Cáceres

Sanchez

Virrueta

2017

J. High Energ. Phys.

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Abstract:We investigate entanglement entropy in Gauss-Bonnet gravity following a global quench. It is known that in dynamical scenarios the entanglement entropy probe penetrates the apparent horizon. The goal of this work is to study how far behind the horizon can the entanglement probe reach in a Gauss-Bonnet theory. We find that the behavior is quite different depending on the sign of the Gauss-Bonnet coupling λ GB . For λ GB > 0 the behavior of the probes is just as in Einstein gravity; the probes do not reach the singularity but asymptote to a locus behind the apparent horizon. We calculate the minimum radial position r min reached by the probes and show that for λ GB > 0 they explore less of the spacetime behind the horizon than in Einstein gravity. On the other hand, for λ GB < 0 the results are strikingly different; for early times a new family of solutions appears. These new solutions reach arbitrarily close to the singularity. We calculate the entanglement entropy for the two family of solutions with λ GB < 0 and find that the ones that reach the singularity are the ones of less entanglement entropy. Thus, for λ GB < 0 the holographic entanglement entropy probes further behind the horizon than in Einstein gravity. In fact, for early times it can explore all the way to the singularity.

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“…In what follows, we will closely follow [41]. For the background in (2.13) the vectors tangent to the ingoing and outgoing null geodesics are given by…”

Section: Jhep09(2017)127mentioning

confidence: 99%

Holographic entanglement entropy in time dependent Gauss-Bonnet gravity

Cáceres

Sanchez

Virrueta

2017

J. High Energ. Phys.

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“…One maps points on the apparent horizon to boundary points by Lie transport along radially ingoing null geodesics, which in the ansatz (2.6) are simply lines of constant {t, x, y}. On the other hand the teleological nature of the event horizon implies that its area would not provide a good measure for the boundary entropy density, cf., [3,44] for a discussion of this point.…”

Section: Jhep04(2015)093mentioning

confidence: 99%

Driven holographic CFTs

Rangamani

Rozali

Wong

2015

J. High Energ. Phys.

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Abstract:We study the dynamical evolution of strongly coupled field theories, initially in thermal equilibrium, under the influence of an external driving force. We model the field theory holographically using classical gravitational dynamics in an asymptotically AdS spacetime. The system is driven by a source for a (composite) scalar operator. We focus on a scenario where the external source is periodic in time and chart out the response of several observables. We find an interesting phase structure in the response as a function of the amplitude of the source and driving frequency. Specifically the system transitions from a dissipation dominated phase, via a dynamical crossover to a highly resonant amplification phase. The diagnostics of these phases include the response of the operator in question, entropy production, energy fluctuations, and the temporal change of entanglement entropy for small subsystems. We comment on evidence for a potential phase transition in the energy fluctuations of the system.

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“…[7] and dubbed 'conformal soliton flow' (see also, [38]). This solution was rediscovered by Nagy [12] and also by us in Ref.…”

Section: Conformal Soliton Flowmentioning

confidence: 99%

Systematic study of exact solutions in second-order conformal hydrodynamics

2014

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In this paper we present the details of our previous work on exact solutions in second-order conformal hydrodynamics together with a number of new solutions found by mapping Minkowski space onto various curved spacetimes such as anti-de Sitter space and hyperbolic space. We analytically show how the solutions of ideal hydrodynamics are modified by the second-order effects including vorticity. We also find novel boost-invariant exact solutions which exist only in second-order hydrodynamics and have an unusual dependence on the proper time.

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Dynamical black holes and expanding plasmas

Cited by 88 publications

References 42 publications

Holographic entanglement entropy in time dependent Gauss-Bonnet gravity

Holographic entanglement entropy in time dependent Gauss-Bonnet gravity

Driven holographic CFTs

Systematic study of exact solutions in second-order conformal hydrodynamics

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