Work

Traversable wormholes in AdS and entanglement*

Year: 2025

Type: article

Abstract: A traversable wormhole generally violates the averaged null energy condition, typically requiring exotic matter. Recently, it was discovered that a traversable wormhole can be realized with non-exotic matter in Einstein-Dirac-Maxwell theories in flat space. This study extends the discussion to AdS spacetime and finds traversable wormholes with spherical and planar topologies. Furthermore, based on the AdS/CFT correspondence, we compute the entanglement entropy of strips and disks on the two AdS boundaries of the wormhole. We find that the entanglement entropy undergoes a phase transition as the subsystem size increases.

Source: Chinese Physics C

DOI: 10.1088/1674-1137/adbd1b

Authors: Hua-Chao 华超 Liu 刘, Rong-Xin 荣欣 Miao 苗

Institution: Sun Yat-sen 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: hybrid

Estimated APC paid: $2,410

Funder: National Natural Science Foundation of China