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Conformal Blocks and Negativity at Large Central Charge

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arxiv 1407.0324 v3 pith:DX4TRDHU submitted 2014-07-01 hep-th

Manuela Kulaxizi , Andrei Parnachev , Giuseppe Policastro This is my paper · ORCID
classification hep-th
keywords negativitycentralchargeconformalintervalslargeanalyticappears
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We consider entanglement negativity for two disjoint intervals in 1+1 dimensional CFT in the limit of large central charge. As the two intervals get close, the leading behavior of negativity is given by the logarithm of the conformal block where a set of approximately null descendants appears in the intermediate channel. We compute this quantity numerically and compare with existing analytic methods which provide perturbative expansion in powers of the cross-ratio.

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  1. Entanglement measures for causally connected subregions and holography

    hep-th 2025-08 conditional novelty 6.0 of 10

    Timelike separated subregions admit a transition-operator entropy, a complexified RT surface, and a timelike entanglement wedge cross section that equals half the analytically continued reflected entropy in AdS3/CFT2.

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