A perturbative expansion for entanglement entropy in string theory
High Energy Physics - Theory
2019-06-26 v4
Abstract
We derive a perturbative expansion for space time entanglement entropy in string theory by comparing replica trick constructions on the target space and on the worldsheet. Requiring the two approaches to match implies a set of constrains on the amplitudes involved and produces a non-trivial relation among target space and world sheet entanglement. We will be mainly interested in bosonic string on a flat background but also discuss the superstring generalization.
Cite
@article{arxiv.1805.09311,
title = {A perturbative expansion for entanglement entropy in string theory},
author = {Andrea Prudenziati},
journal= {arXiv preprint arXiv:1805.09311},
year = {2019}
}
Comments
A new section with an explicit computation has been added, together with a few minor corrections. A couple of errors have been fixed. Matches the version accepted for publication