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Holographic Complexity Equals Bulk Action

TLDR
The hypothesis that black holes are the fastest computers in nature is discussed and the conjecture that the quantum complexity of a holographic state is dual to the action of a certain spacetime region that is called a Wheeler-DeWitt patch is illustrated.
Abstract
We conjecture that the quantum complexity of a holographic state is dual to the action of a certain spacetime region that we call a Wheeler-DeWitt patch. We illustrate and test the conjecture in the context of neutral, charged, and rotating black holes in anti-de Sitter spacetime, as well as black holes perturbed with static shells and with shock waves. This conjecture evolved from a previous conjecture that complexity is dual to spatial volume, but appears to be a major improvement over the original. In light of our results, we discuss the hypothesis that black holes are the fastest computers in nature.

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Citations
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Journal ArticleDOI

Reparameterization Dependence is Useful for Holographic Complexity

TL;DR: In this article, the authors relax the requirement of reparameterization invariance of the action with the prescription that the action vanish in any static, vacuum causal diamond, which implies that vacuum anti-de Sitter space plays the role of the reference state.
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Quantum algorithms for conformal bootstrap

TL;DR: In this paper, the authors discuss the possibility for quantum speedup for the numerical conformal bootstrap in conformal field theory and show that quantum algorithms may have significant improvement in the computational performance for several numerical bootstrap problems.
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Does Boundary Distinguish Complexities

TL;DR: In this paper, the complexity of quantum states in conformal field theory with boundary was studied and it was shown that boundary does not distinguish the complexities in general, whereas the complexity for defects distinguish action from volume.
Posted Content

Mixed State Entanglement and Thermal Phase Transitions

TL;DR: In this paper, the relationship between mixed state entanglement and thermal phase transitions was studied, and it was shown that EoP captures more abundant information than HEE and MI.
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Holographic complexity in dSd+1

TL;DR: In this article , the authors studied the holographic complexity in (d + 1)-dimensional de Sitter spacetime, and showed that the growth of the complexity exhibits hyperfast growth and appears to diverge with a universal power law at a critical critical time.
References
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The world as a hologram

TL;DR: In this article, the effects of particle growth with momentum on information spreading near black hole horizons were investigated. But the authors only considered the earliest times of the propagation of information near the horizon.
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A bound on chaos

TL;DR: In this paper, a sharp bound on the rate of growth of chaos in thermal quantum systems with a large number of degrees of freedom is given, based on plausible physical assumptions, establishing this conjecture.
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Black holes and the butterfly effect

TL;DR: In this article, the authors used holography to study sensitive dependence on initial conditions in strongly coupled field theories and showed that the effect of the early infalling quanta relative to the t = 0 slice creates a shock wave that destroys the local two-sided correlations present in the unperturbed state.
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The String landscape, black holes and gravity as the weakest force

TL;DR: In this paper, an upper bound on the strength of gravity relative to gauge forces in quantum gravity was given, motivated by arguments involving holography and absence of remnants, the stability of black holes as well as the non-existence of global symmetries in string theory.

Dimensional reduction in quantum gravity

TL;DR: In this article, Abdus Salam argued that the observable degrees of freedom can best be described as if they were Boolean variables defined on a two-dimensional lattice, evolving with time.
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