Milne Spacetime with Conical Defect: Some Holographic Studies
Abstract
In this work, we initiate a holographic study of field theory on time dependent background with conical defect. We focus on the Milne space-time to which, in the absence of cosmological constant, at late time any hyperbolic Friedmann-Robertson-Walker metric flows to. When the Milne vacuum is represented by the adiabatic one, we are able to compute the two point correlators of operators which are dual to the massive scalars in the bulk AdS-Milne background with defect. We find, for both twisted and untwisted operators, the correlators can be represented as the sum over images. This sum can be carried out explicitly to write the results in compact forms.
Cite
@article{arxiv.2205.14080,
title = {Milne Spacetime with Conical Defect: Some Holographic Studies},
author = {Swayamsidha Mishra and Sudipta Mukherji and Yogesh K. Srivastava},
journal= {arXiv preprint arXiv:2205.14080},
year = {2022}
}
Comments
24 pages,Latex, No figure,Added a section on other vacua, Additional comments,Previous results unchanged, Journal Version