Programme

P.23 -- Poster, VCTP-47

Date: Tuesday, 2 August 2022

Time: 08:30 - 10:00

Islands in regular black strings

Tran Ngoc Hung, Cao Hoang Nam, Doan Minh Luong

Phenikaa University

We apply the quantum extremal surface prescription to calculate the Page curve for five and higher dimensional regular black strings. The results in the configuration without island show that the entanglement entropy of the Hawking radiation grows over time and becomes infinite at late times. Taking into account of one island configuration which emerges at the late times of the evaporation, the entanglement entropy becomes saturated and is equal to twice of the Bekenstein-Hawking entropy of the black string. We find that the boundary of island is outside but near the event horizon. The result with the island configuration is consistent with the finiteness of the entanglement entropy of the Hawking radiation for an eternal black string.

Presenter: Tran Ngoc Hung