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Conformal Blocks and Negativity at Large Central Charge

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 نشر من قبل Manuela Kulaxizi
 تاريخ النشر 2014
  مجال البحث
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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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