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Seminar
NUMBER Q18030
AUTHOR Yang, Run-Qiu
TITLE Holographic entanglement of purification for thermofield double states and thermal quench
ARCHIVE 1810.00420
FILE  
JOURNAL JOURNAL OF HIGH ENERGY PHYSICS, 2019
ABSTRACT We explore the properties of holographic entanglement of purification (EoP) for two disjoint strips in the Schwarzschild-AdS black brane and the Vaidya-AdS black brane spacetimes. For two given strips on the same boundary of Schwarzschild-AdS spacetime, there is an upper bound of the separation beyond which the holographic EoP will always vanish no matter how wide the strips are. In the case that two strips are in the two boundaries of the spacetime respectively, we find that the holographic EoP exists only when the strips are wide enough. If the width is finite, the EoP can be nonzero in a finite time region. For thermal quench case, we find that the equilibrium time of holographic EoP is only sensitive to the width of strips, while that of the holographic mutual information is sensitive not only to the width of strips but also to their separation.
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