Work

Entanglement entropy in flat holography

Year: 2017

Type: article

Abstract: BMS symmetry, which is the asymptotic symmetry at null infinity of flat spacetime, is an important input for flat holography. In this paper, we give a holographic calculation of entanglement entropy and Rényi entropy in three dimensional Einstein gravity and Topologically Massive Gravity. The geometric picture for the entanglement entropy is the length of a spacelike geodesic which is connected to the interval at null infinity by two null geodesics. The spacelike geodesic is the fixed points of replica symmetry, and the null geodesics are along the modular flow. Our strategy is to first reformulate the Rindler method for calculating entanglement entropy in a general setup, and apply it for BMS invariant field theories, and finally extend the calculation to the bulk.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep07(2017)142

Authors: Hongliang Jiang, Wei Song, Qiang Wen

Institutions: Hong Kong University of Science and Technology, Tsinghua University

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: Tsinghua University, Hong Kong University of Science and Technology, Division of Mathematical Sciences

OpenAlex ID: W2719342014