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Energy Reflection and Transmission at 2D Holographic Interfaces

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arxiv 2006.11333 v1 pith:UP7YZBRB submitted 2020-06-19 hep-th cond-mat.str-elgr-qc

Constantin Bachas , Shira Chapman , Dongsheng Ge , Giuseppe Policastro This is my paper · ORCID
classification hep-thcond-mat.str-elgr-qc
keywords energyinterfacesreflectionconformalholographictransmissionanchoredanec
verification ladder T0 review T1 audit T2 compute T3 formal
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Scattering from conformal interfaces in two dimensions is universal in that the flux of reflected and transmitted energy does not depend on the details of the initial state. In this letter, we present the first gravitational calculation of energy reflection and transmission coefficients for interfaces with thin-brane holographic duals. Our result for the reflection coefficient depends monotonically on the tension of the dual string anchored at the interface, and obeys the lower bound recently derived from the ANEC in conformal field theory. The B(oundary)CFT limit is recovered for infinite ratio of the central charges.

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Cited by 5 Pith papers

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