Calibrated entanglement entropy

Calibrated entanglement entropy
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DOI:
10.1007/jhep07(2017)117
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发表时间:
2017-05
影响因子:
5.4
通讯作者:
I. Bakhmatov;I. Bakhmatov;N. S. Deger;J. Gutowski;E. Colgáin;H. Yavartanoo
I. Bakhmatov;I. Bakhmatov;N. S. Deger;J. Gutowski;E. Colgáin;H. Yavartanoo
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
I. Bakhmatov;I. Bakhmatov;N. S. Deger;J. Gutowski;E. Colgáin;H. Yavartanoo

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Ryu-Takayanagi公式将计算CFTs中纠缠熵的问题简化为确定对偶反德西特几何中的最小曲面。对于3D引力理论和BTZ黑洞,我们确定的最小曲面作为特殊的拉格朗日循环校准的真实的部分的全纯的一种形式的类空超曲面。我们表明,(广义)校准提供了一个统一的方法来确定全息纠缠熵从最小的表面,这是适用于翘曲的AdS 3几何形状。我们简要地讨论了更高维度的推广。
The Ryu-Takayanagi prescription reduces the problem of calculating entanglement entropy in CFTs to the determination of minimal surfaces in a dual anti-de Sitter geometry. For 3D gravity theories and BTZ black holes, we identify the minimal surfaces as special Lagrangian cycles calibrated by the real part of the holomorphic one-form of a spacelike hypersurface. We show that (generalised) calibrations provide a unified way to determine holographic entanglement entropy from minimal surfaces, which is applicable to warped AdS 3 geometries. We briefly discuss generalisations to higher dimensions.