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Steady States of Holographic Interfaces

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arxiv 2107.00965 v2 pith:LI27SWHS submitted 2021-07-02 hep-th cond-mat.stat-mechgr-qc

Constantin Bachas , Zhongwu Chen , Vassilis Papadopoulos This is my paper · ORCID
classification hep-thcond-mat.stat-mechgr-qc
keywords interfacesheatholographichorizoninterfaceregimesidestates
verification ladder T0 review T1 audit T2 compute T3 formal
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We find stationary thin-brane geometries that are dual to far-from-equilibrium steady states of two-dimensional holographic interfaces. The flow of heat at the boundary agrees with the result of CFT and the known energy-transport coefficients of the thin-brane model. We argue that by entangling outgoing excitations the interface produces coarse-grained entropy at a maximal rate, and point out similarities and differences with double-sided black funnels. The non-compact, non-Killing and far from-equilibrium event horizon of our solutions coincides with the local (apparent) horizon on the colder side, but lies behind it on the hotter side of the interface. We also show that the thermal conductivity of a pair of interfaces jumps at the Hawking-Page phase transition from a regime described by classical scatterers to a quantum regime in which heat flows unobstructed.

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Cited by 3 Pith papers

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    All rotation-invariant superconformal defects satisfy CD/aT = -2(n-1)(p+2)Γ(p+1)/(n π^{p-n/2} Γ(p/2+1)Γ((n-p)/2)), proved from supersymmetric Ward identities.

  2. Nonequilibrium steady states in driven holographic Weyl semi-metals

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    Stringy vibrations of an AdS3 junction between two thermal CFTs map to half-sided conformal transformations, producing perfectly reflected wavepackets, and are readable from interval entanglement entropy even at zero tension.

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