Abstract
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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ArXiv ePrint: 1407.0324
UMR du CNRS 8549.
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Kulaxizi, M., Parnachev, A. & Policastro, G. Conformal blocks and negativity at large central charge. J. High Energ. Phys. 2014, 10 (2014). https://doi.org/10.1007/JHEP09(2014)010
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DOI: https://doi.org/10.1007/JHEP09(2014)010