# Entanglement entropy of non-local theories in AdS

## TL;DR

This paper studies how non-locality influences entanglement entropy in anti-de Sitter space, revealing modifications to sub-leading terms, universality of the UV finite part, and oscillatory behavior in specific cases.

## Contribution

It provides the first detailed analysis of entanglement entropy in non-local theories within AdS, highlighting unique features like oscillations and universal finite terms.

## Key findings

- Area law holds with non-local modifications
- UV finite term is universal across models
- Massless 3D AdS case exhibits oscillatory entanglement entropy

## Abstract

We investigate the effect of non-locality on entanglement entropy in anti-de Sitter space-time. We compute entanglement entropy of a nonlocal field theory in anti-de Sitter space-time and find several interesting features. We find that area law is followed, but sub-leading terms are affected by non-locality. We also find that the UV finite term is universal. For the massless theory in 3 dimensional AdS we compute it exactly and find the novel feature that it shows oscillatory behavior.