典型文献
Quantum entanglement in the Sachdev-Ye-Kitaev model and its generalizations
文献摘要：
Entanglement is one of the most important concepts in quantum physics.We review recent progress in understanding the quantum entanglement in many-body systems using large-N solvable models:the Sachdev-Ye-Kitaev(SYK)model and its generalizations.We present the study of entanglement entropy in the original SYK model using three different approaches:the ex-act diagonalization,the eigenstate thermalization hypothesis,and the path-integral representation.For coupled SYK models,the entanglement entropy shows linear growth and saturation at the thermal value.The saturation is related to replica wormholes in gravity.Finally,we consider the steady-state entanglement entropy of quantum many-body systems under repeated mea-surements.The traditional symmetry breaking in the enlarged replica space leads to the measurement-induced entanglement phase transition.
文献关键词：
中图分类号：
作者姓名：
Pengfei Zhang
作者机构：
Institute for Quantum Information and Matter and Walter Burke Institute for Theoretical Physics,California Institute of Technology,Pasadena,CA 91125,USA
文献出处：
引用格式：
[1]Pengfei Zhang-.Quantum entanglement in the Sachdev-Ye-Kitaev model and its generalizations)[J].物理学前沿,2022(04):31-53
A类：
Sachdev,wormholes
B类：
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AB值：
0.542492
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