Entanglement entropy and conformal field theory

被引：1241
作者：
Calabrese, Pasquale [1 ,2 ]
Cardy, John [3 ,4 ]
机构：
[1] Univ Pisa, Dipartimento Fis, Pisa, Italy
[2] Ist Nazl Fis Nucl, Pisa, Italy
[3] Univ Oxford, Rudolf Peierls Ctr Theoret Phys, Oxford OX1 3NP, England
[4] Univ Oxford All Souls Coll, Oxford OX1 4AL, England
来源：
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL | 2009年 / 42卷 / 50期
基金：
英国工程与自然科学研究理事会;
关键词：
CORNER TRANSFER-MATRICES; DENSITY-MATRICES; FREE-ENERGY; QUANTUM; BOUNDARY; XY; INVARIANCE; CHAIN; POINT;
D O I：
10.1088/1751-8113/42/50/504005
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We review the conformal field theory approach to entanglement entropy in 1+1 dimensions. We show how to apply these methods to the calculation of the entanglement entropy of a single interval, and the generalization to different situations such as finite size, systems with boundaries and the case of several disjoint intervals. We discuss the behaviour away from the critical point and the spectrum of the reduced density matrix. Quantum quenches, as paradigms of non-equilibrium situations, are also considered.
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页数：36
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