On the Entanglement Between Interacting Scalar Field Theories
M. Reza Mohammadi Mozaffar, Ali Mollabashi (IPM, Tehran)
TL;DR
This paper investigates the entanglement properties of interacting free scalar field theories with kinetic mixing, providing exact formulas for entanglement and Renyi entropies, and exploring related measures and potential holographic connections.
Contribution
It derives exact analytic expressions for entanglement and Renyi entropies in multi-field scalar theories with kinetic mixing, advancing understanding of their quantum correlations.
Findings
Exact formulas for entanglement and Renyi entropies
Analysis of entanglement inequalities in these models
Discussion of holographic interpretations
Abstract
We study "field space entanglement" in certain quantum field theories consisting of N number of free scalar fields interacting with each other via kinetic mixing terms. We present exact analytic expressions for entanglement end Renyi entropies between arbitrary number of scalar fields by which we could explore certain entanglement inequalities. Other entanglement measures such as mutual information and entanglement negativity have also been studied. We also give some comments about possible holographic realizations of such models.
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