3
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Entanglement Entropy in Interacting Field Theories

      Preprint

      , ,

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Entanglement entropy (EE) in interacting field theories has two important issues: renormalization of UV divergences and non-Gaussianity of the vacuum. In this letter, we investigate them in the framework of the two-particle irreducible formalism. In particular, we consider EE of a half space in an interacting scalar field theory. It is formulated as \(\mathbb{Z}_M\) gauge theory on Feynman diagrams: \(\mathbb{Z}_M\) fluxes are assigned on plaquettes and summed to obtain EE. Some configurations of fluxes are interpreted as twists of propagators and vertices. The former gives a Gaussian part of EE written in terms of a renormalized 2-point function while the latter reflects non-Gaussianity of the vacuum.

          Related collections

          Author and article information

          Journal
          09 March 2021
          Article
          2103.05303

          http://arxiv.org/licenses/nonexclusive-distrib/1.0/

          Custom metadata
          KEK-TH-2307
          5 pages, 4 figures
          hep-th quant-ph

          Quantum physics & Field theory, High energy & Particle physics

          Comments

          Comment on this article