Holographic complexity of hyperbolic black holes
arXiv:2304.10454 · doi:10.1103/PhysRevD.108.046006
Abstract
We calculate the holographic complexity of a family of hyperbolic black holes in an Einstein-Maxwell-dilaton (EMD) system by applying the complexity=action (CA) conjecture. While people previously studied spherical black holes in the same system, we show that hyperbolic black holes have intriguing features. We confirm that the complexity expression mainly depends on the spacetime causal structure despite the rich thermodynamics. The nontrivial neutral limit that exists only for hyperbolic black holes enables us to analytically obtain the complexity growth rate during phase transitions. We find that the dilaton accelerates the growth rate of complexity, and the Lloyd bound can be violated. This is in contrast to the spherical case where the dilation slows the complexity growth rate down, and the Lloyd bound is always satisfied. As a special case, we study the holographic complexity growth rate of the neutral hairy black holes and find that the Lloyd bound is always violated.
arXiv comment31 pages, 16 figures, jheppub; v2:improved, published version
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