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Holographic complexity of local quench at finite temperature

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arxiv 1902.03632 v2 pith:F6EGSWOJ submitted 2019-02-10 hep-th cond-mat.str-elquant-ph

Holographic complexity of local quench at finite temperature

classification hep-th cond-mat.str-elquant-ph
keywords complexityfinitegrowthlinearlocaltemperatureholographicquench
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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This paper is devoted to the study of the evolution of holographic complexity after a local perturbation of the system at finite temperature. We calculate the complexity using both the complexity=action(CA) and the complexity=volume(CA) conjectures and find that the CV complexity of the total state shows the unbounded late time linear growth. The CA computation shows linear growth with fast saturation to a constant value. We estimate the CV and CA complexity linear growth coefficients and show, that finite temperature leads to violation of the Lloyd bound for CA complexity. Also it is shown that for composite system after the local quench the state with minimal entanglement may correspond to the maximal complexity.

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