Island in charged black holes

A bstract We study the information paradox for eternal black hole with charges on a doubly-holographic model in general dimensions, where charged Planck brane is coupled to baths conformal boundaries. In case of weak tension, can be treated as probe such that its backreaction bulk negligible. analytically calculate entanglement entropy radiation and obtain Page curve presence an island brane. For near-extremal holes, growth rate linear temperature. Taking both Dvali-Gabadadze-Porrati term nonzero tension into account, we numerical solution four-dimensional spacetime find quantum extremal surface at t = 0. To guarantee obtained cases, propose two strategies impose enough degrees freedom properly described by setup.