Vacuum states for AdS2 black holes
Vacuum states for AdS2 black holes
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AdS2 黑洞的真空状态
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
A. Strominger
中科院分区：
文献类型：
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作者：
M. Spradlin;A. Strominger
一个AdS 2黑洞时空是一个AdS 2时空加上一个优选的时间。对AdS 2黑洞中的有质量标量和无质量标量，构造了Boulware，Hartle-Hawking和SL（2，）不变真空及其绿色函数和应力张量.经典的贝肯斯坦-霍金熵被发现是独立的温度，但在一个圈的非零纠缠熵出现。这代表了对数违反有限温度解耦的AdS 2黑洞出现在近视界极限的渐近平坦的黑洞。SL（2，）不变边界量子力学的相关函数计算作为AdS 2真空的选择的函数。
An AdS2 black hole spacetime is an AdS2 spacetime together with a preferred choice of time. The Boulware, Hartle-Hawking and SL(2,) invariant vacua are constructed, together with their Green functions and stress tensors, for both massive and massless scalars in an AdS2 black hole. The classical Bekenstein-Hawking entropy is found to be independent of the temperature, but at one loop a non-zero entanglement entropy arises. This represents a logarithmic violation of finite-temperature decoupling for AdS2 black holes which arise in the near-horizon limit of an asymptotically flat black hole. Correlation functions of the SL(2,) invariant boundary quantum mechanics are computed as functions of the choice of AdS2 vacuum.