Modular Hamiltonians in flat holography and (W)AdS/WCFT

Apolo, Luis; Jiang, Hongliang; Song, Wei; Zhong, Yuan (2020). Modular Hamiltonians in flat holography and (W)AdS/WCFT. Journal of High Energy Physics, 2020(9), 033. Springer 10.1007/JHEP09(2020)033

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We study several aspects of holographic entanglement in two models known as flat3/BMSFT and (W)AdS3/WCFT. These are two examples of holography beyond AdS/CFT where the boundary field theories are not Lorentz invariant but still feature an infinite set of local symmetries. In the first example, BMS-invariant field theories (BMSFTs) are conjectured to provide a holographic description of quantum gravity in asymptotically flat three-dimensional spacetimes; while in the second example, warped conformal field theories (WCFTs) are proposed to describe quantum gravity in warped AdS3 or AdS3 backgrounds with Dirichlet-Neumann boundary conditions. In particular, we derive the modular Hamiltonian for single intervals in both BMSFTs and WCFTs and find the holographic duals in the bulk using the covariant formulation of gravitational charges. We also extend the first law of entanglement entropy to these models of non-AdS holography and discuss the bound on “modular chaos” introduced recently in the context of the AdS/CFT correspondence.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Institute of Theoretical Physics

UniBE Contributor:

Jiang, Hongliang

Subjects:

500 Science > 530 Physics

ISSN:

1029-8479

Publisher:

Springer

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

16 Nov 2020 13:40

Last Modified:

16 Nov 2020 13:40

Publisher DOI:

10.1007/JHEP09(2020)033

ArXiv ID:

2006.10741

BORIS DOI:

10.7892/boris.147923

URI:

https://boris.unibe.ch/id/eprint/147923

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