Field space entanglement entropy, zero modes and Lifshitz models

Author(s)
Helmuth Huffel, Gerald Kelnhofer
Abstract

The field space entanglement entropy of a quantum field theory is obtained by integrating out a subset of its fields. We study an interacting quantum field theory consisting of massless scalar fields on a closed compact manifold M. To this model we associate its Lifshitz dual model. The ground states of both models are invariant under constant shifts. We interpret this invariance as gauge symmetry and subject the models to proper gauge fixing. By applying the heat kernel regularization one can show that the field space entanglement entropies of the massless scalar field model and of its Lifshitz dual are agreeing. (C) 2017 The Author(s). Published by Elsevier B.V.

Organisation(s)
Particle Physics
External organisation(s)
Universität Wien
Journal
Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume
775
Pages
229-232
No. of pages
4
ISSN
0370-2693
DOI
https://doi.org/10.1016/j.physletb.2017.10.051
Publication date
12-2017
Peer reviewed
Yes
Austrian Fields of Science 2012
103012 High energy physics
Keywords
Portal url
https://ucris.univie.ac.at/portal/en/publications/field-space-entanglement-entropy-zero-modes-and-lifshitz-models(144b096a-f1fd-42ee-8c31-bf12616a8b34).html