期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 10, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP10(2015)003
关键词
Field Theories in Lower Dimensions; Renormalization Group; Topological Field Theories; Conformal and W Symmetry
资金
- Government of Canada through Industry Canada
- Province of Ontario through the Ministry of Research Innovation
- NSERC Discovery grant
- Canadian Institute for Advanced Research
- Natural Sciences and Engineering Research Council of Canada
- CONICET
- Universidad de Cuyo, Argentina
Mutual information is used as a purely geometrical regularization of entanglement entropy applicable to any QFT. A coefficient in the mutual information between concentric circular entangling surfaces gives a precise universal prescription for the monotonous quantity in the c-theorem for d = 3. This is in principle computable using any regularization for the entropy, and in particular is a definition suitable for lattice models. We rederive the proof of the c-theorem for d = 3 in terms of mutual information, and check our arguments with holographic entanglement entropy, a free scalar field, and an extensive mutual information model.
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