Relative entropy in CFT
Relative entropy in CFT
复制标题
CFT 中的相对熵
DOI:
10.1016/j.aim.2018.08.015
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发表时间:
2018
影响因子:
1.7
通讯作者:
Xu, Feng
中科院分区:
文献类型:
--
作者:
Longo, Roberto;Xu, Feng
Inspired by Edward Witten's questions, we compute the mutual information associated with free fermions, and we deduce many results about entropies for chiral CFT's which are embedded into free fermions, and their extensions. Such relative entropies in CFT are here computed explicitly for the first time in a mathematical rigorous way, and Our results agree with previous computations by physicists based on heuristic arguments; in addition we uncover a surprising connection with the theory of subfactors, in particular by showing that a certain duality, which is argued to be true on physical grounds, is in fact violated if the global dimension of the conformal net is greater than 1.
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