Energy Reflection and Transmission at 2D Holographic Interfaces
High Energy Physics - Theory
2020-12-30 v1 Strongly Correlated Electrons
General Relativity and Quantum Cosmology
Abstract
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.
Cite
@article{arxiv.2006.11333,
title = {Energy Reflection and Transmission at 2D Holographic Interfaces},
author = {Constantin Bachas and Shira Chapman and Dongsheng Ge and Giuseppe Policastro},
journal= {arXiv preprint arXiv:2006.11333},
year = {2020}
}
Comments
5 pages, 1 figure