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Large distance expansion of Mutual Information for disjoint disks in a free scalar theory

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arxiv 1505.03757 v2 pith:CM2LZAKS submitted 2015-05-14 hep-th

Large distance expansion of Mutual Information for disjoint disks in a free scalar theory

Cesar A. Ag\'on , Isaac Cohen-Abbo , Howard J. Schnitzer This is my paper
classification hep-th
keywords disjointdisksdistanceexpansionfreeinformationmutualnext-to-leading
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We compute the next-to-leading order term in the long-distance expansion of the mutual information for free scalars in three space-time dimensions. The geometry considered is two disjoint disks separated by a distance $r$ between their centers. No evidence for non-analyticity in the R\'enyi parameter $n$ for the continuation $n \rightarrow 1$ in the next-to-leading order term is found.

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  1. Mutual Information from Modular Flow in General CFTs

    hep-th 2026-04 unverdicted novelty 8.0

    A hierarchy of approximations to the mutual information in CFTs is derived from modular flow and two-point functions of primaries, providing a high-precision formula for arbitrary ball separations that supersedes prev...