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Gauge invariance and holographic renormalization

Title
Gauge invariance and holographic renormalization
Author
신상진
Keywords
Gauge/gravity duality; Holographic renormalization; Gauge invariance
Issue Date
2015-10
Publisher
ELSEVIER SCIENCE BV
Citation
PHYSICS LETTERS B, v. 749, Page. 108-114
Abstract
We study the gauge invariance of physical observables in holographic theories under the local diffeomorphism. We find that gauge invariance is intimately related to the holographic renormalization: the local counter terms defined in the boundary cancel most of gauge dependences of the on-shell action as well as the divergences. There is a mismatch in the degrees of freedom between the bulk theory and the boundary one. We resolve this problem by noticing that there is a residual gauge symmetry (RGS). By extending the RGS such that it satisfies infalling boundary condition at the horizon, we can understand the problem in the context of general holographic embedding of a global symmetry at the boundary into the local gauge symmetry in the bulk. (C) 2015 The Authors. Published by Elsevier B.V.
URI
http://www.sciencedirect.com/science/article/pii/S0370269315005687?via%3Dihubhttp://hdl.handle.net/20.500.11754/28258
ISSN
0370-2693; 1873-2445
DOI
10.1016/j.physletb.2015.07.058
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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