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A simple analysis of the mixed-state information metric in AdS₃/CFT₂

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arxiv 1810.10441 v2 pith:H6JAUHFS submitted 2018-10-24 hep-th

A simple analysis of the mixed-state information metric in AdS$_3$/CFT$_2$

classification hep-th
keywords informationstateconformaldeltadimensionmetricmixedprimary
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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abstract

We compute the quantum information metrics of a thermal CFT on $\mathbb R^{1,1}$ perturbed by the scalar primary operators of conformal dimension $\Delta=3,4,5,6$. In particular, we assume that the Hamiltonian of the mixed state commutes with each other and the temperature is fixed. Under these conditions, the evaluation is analogous to the pure state case. We also apply the method of [arXiv:1607.06519] to calculate the mixed state information metric for the scalar primary operator with conformal dimension $\Delta=4$ holographically. We find an exact agreement between the two results in our approach.

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