Entanglement island and Page curve for one-sided charged black hole

• DOI: 10.1007/jhep08(2024)023
• Publication Date: 2024-08-05T12:05:02Z
• Authors: Yun-Feng Qu; Yi-Ling Lan; Hongwei Yu; Wen-Cong Gan; Fu-Wen Shu
• Keywords: Black hole (networking)

A bstract In this paper, we extend the method of calculating entanglement entropy Hawking radiation black holes using “in” vacuum state, which describes one-sided asymptotically flat neutral hole formed by gravitational collapse, to dynamic charged holes. We explore influence charge on position boundary island ∂I and Page time. Due their distinct geometric structures, discuss non-extremal extremal separately. cases, emergence saves bound at late times, satisfies curve. Moreover, also find that depends cutoff surface (observers), differing from behavior in eternal holes, when exists, is approximately equal Bekenstein-Hawking entropy, while becomes ill-defined absent. Our analysis underscores how different configurations significantly entropy.