Entanglement entropy of coupled conformal field theories and Fermi liquids
Entanglement entropy of coupled conformal field theories and Fermi liquids
复制标题
耦合共形场论和费米液体的纠缠熵
DOI:
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发表时间:
2011
期刊:
影响因子:
--
通讯作者:
Cenke Xu
中科院分区:
文献类型:
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作者:
Cenke Xu
In this paper, we calculate the entanglement R'enyi entropy of two coupled gapless systems in general spatial dimension $d$. The gapless systems can be either conformal field theories or Fermi liquids. We assume the two systems are coupled uniformly in an $h$-dimensional submanifold of the space, with $0ensuremath{le}hensuremath{le}d$. We will focus on the scaling of the R'enyi entropy with the size of the system, and its scaling with the intersystem coupling constant $g$. Three approaches will be used for our calculation: (1) exact calculation with ground-state wave functional, (2) perturbative calculation with functional path integral, and (3) scaling argument.
影响因子:
8.6
作者:
Karch A
通讯作者:
Karch A