An investigation of AdS2 backreaction and holography
An investigation of AdS2 backreaction and holography
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DOI：
10.1007/jhep07(2016)139
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发表时间：
2016-06
影响因子：
5.4
通讯作者：
Julius Engelsöy;T. Mertens;H. Verlinde
中科院分区：
文献类型：
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作者：
Julius Engelsöy;T. Mertens;H. Verlinde
本文研究了Almheiri和Polchinski [1]提出的AdS 2中的一个非线性引力模型，并给出了一个用动力学边界时间和Schwarzian导数作用量表示的一维有效描述.我们表明，有效的模型是相当于一个一维版本的刘维理论，并调查其动力学和对称性，通过一个标准的正则框架。我们包括耦合到任意的共形物质和分析的有效行动中存在的可能来源。我们在大时间间隔下计算了局域算符的标量，并将结果与引力冲击波相互作用引起的时移相匹配。我们研究了一个黑洞蒸发过程，并评论了熵在这个模型中的作用。
We investigate a dilaton gravity model in AdS 2 proposed by Almheiri and Polchinski [1] and develop a 1d effective description in terms of a dynamical boundary time with a Schwarzian derivative action. We show that the effective model is equivalent to a 1d version of Liouville theory, and investigate its dynamics and symmetries via a standard canonical framework. We include the coupling to arbitrary conformal matter and analyze the effective action in the presence of possible sources. We compute commutators of local operators at large time separation, and match the result with the time shift due to a gravitational shockwave interaction. We study a black hole evaporation process and comment on the role of entropy in this model.