### 抜粋

In AdS/CFT duality, it is often argued that information behind the event horizon is encoded even in boundary correlators. However, its implication is not fully understood. We study a simple model which can be analyzed explicitly. The model is a two-dimensional scalar field propagating on the s-wave sector of the BTZ black hole formed by the gravitational collapse of a null dust. Inside the event horizon, we placed an artificial timelike singularity where one-parameter family of boundary conditions is permitted. We compute two-point correlators with two operators inserted on the boundary to see if the parameter can be extracted from the correlators. In a typical case, we give an explicit form of the boundary correlators of an initial vacuum state and show that the parameter can be read off from them. This does not immediately imply that the asymptotic observer can extract the information of the singularity since one cannot control the initial state in general. Thus, we also study whether the parameter can be read off from the correlators for a class of initial states.

元の言語 | English |
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記事番号 | 046010 |

ジャーナル | Physical Review D - Particles, Fields, Gravitation and Cosmology |

巻 | 74 |

発行部数 | 4 |

DOI | |

出版物ステータス | Published - 2006 9 6 |

### ASJC Scopus subject areas

- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)

## フィンガープリント Extracting information behind the veil of the horizon' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

## これを引用

*Physical Review D - Particles, Fields, Gravitation and Cosmology*,

*74*(4), [046010]. https://doi.org/10.1103/PhysRevD.74.046010