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タイトル: | Spectrum of end of the world branes in holographic BCFTs |
著者: | Miyaji, Masamichi Takayanagi, Tadashi https://orcid.org/0000-0001-7187-3130 (unconfirmed) Ugajin, Tomonori |
著者名の別形: | 髙柳, 匡 宇賀神, 知紀 |
キーワード: | AdS-CFT Correspondence Boundary Quantum Field Theory Conformal Field Theory |
発行日: | Jun-2021 |
出版者: | Springer Nature |
誌名: | Journal of High Energy Physics |
巻: | 2021 |
号: | 6 |
論文番号: | 23 |
抄録: | We study overlaps between two regularized boundary states in conformal field theories. Regularized boundary states are dual to end of the world branes in an AdS black hole via the AdS/BCFT. Thus they can be regarded as microstates of a single sided black hole. Owing to the open-closed duality, such an overlap between two different regularized boundary states is exponentially suppressed as ⟨𝜓𝑎∣∣𝜓𝑏⟩∼𝑒−𝑂(ℎ(min)𝑎𝑏), where ℎ(min)𝑎𝑏 is the lowest energy of open strings which connect two different boundaries a and b. Our gravity dual analysis leads to ℎ(min)𝑎𝑏 = c/24 for a pure AdS3 gravity. This shows that a holographic boundary state is a random vector among all left-right symmetric states, whose number is given by a square root of the number of all black hole microstates. We also perform a similar computation in higher dimensions, and find that ℎ(min)𝑎𝑏 depends on the tensions of the branes. In our analysis of holographic boundary states, the off diagonal elements of the inner products can be computed directly from on-shell gravity actions, as opposed to earlier calculations of inner products of microstates in two dimensional gravity. |
著作権等: | © The Authors. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. |
URI: | http://hdl.handle.net/2433/274016 |
DOI(出版社版): | 10.1007/jhep06(2021)023 |
出現コレクション: | 学術雑誌掲載論文等 |
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