Holographic second laws of black hole thermodynamics
AbstractRecently, it has been shown that for out-of-equilibrium systems, there are additional constraints on thermodynamical evolution besides the ordinary second law. These form a new family of second...
View ArticleCircuit complexity for free fermions
AbstractWe study circuit complexity for free fermionic field theories and Gaussian states. Our definition of circuit complexity is based on the notion of geodesic distance on the Lie group of special...
View ArticleOn the Noether charge and the gravity duals of quantum complexity
AbstractThe physical relevance of the thermodynamic volumes of AdS black holes to the gravity duals of quantum complexity was recently argued by Couch et al. In this paper, by generalizing the...
View ArticleCircuit complexity for coherent states
AbstractWe examine the circuit complexity of coherent states in a free scalar field theory, applying Nielsen’s geometric approach as in [1]. The complexity of the coherent states have the same UV...
View ArticleHolographic complexity equals which action?
AbstractWe revisit the complexity = action proposal for charged black holes. We investigate the complexity for a dyonic black hole, and we find the surprising feature that the late-time growth is...
View ArticleParticle Acceleration in Rotating Modified Hayward and Bardeen Black Holes
AbstractWe consider a rotating modified Hayward black hole and construct a rotating modified Bardeen black hole to study particle acceleration of two colliding particles near the horizon. These classes...
View ArticleLocalized thermal states and negative energy
AbstractWe construct localized states defined in a ball or the half-space of a conformal field theory (CFT) in Minkowski that are thermal with respect to the local modular flow. We compute their energy...
View ArticleExtended thermodynamics and complexity in gravitational Chern-Simons theory
AbstractWe study several aspects of the extended thermodynamics of BTZ black holes with thermodynamic mass \( M=\alpha m+\gamma \frac{j}{\ell } \) and angular momentum J = αj + γℓm, for general values...
View ArticleComplexity of mixed states in QFT and holography
AbstractWe study the complexity of Gaussian mixed states in a free scalar field theory using the ‘purification complexity’. The latter is defined as the lowest value of the circuit complexity,...
View ArticleInformation flow in black hole evaporation
AbstractRecently, new holographic models of black hole evaporation have given fresh insights into the information paradox [1–3]. In these models, the black hole evaporates into an auxiliary bath space...
View ArticleQuantum extremal islands made easy. Part I. Entanglement on the brane
AbstractRecent progress in our understanding of the black hole information paradox has lead to a new prescription for calculating entanglement entropies, which involves special subsystems in regions...
View ArticleQuantum extremal islands made easy. Part II. Black holes on the brane
AbstractWe discuss holographic models of extremal and non-extremal black holes in contact with a bath in d dimensions, based on a brane world model introduced in [1]. The main benefit of our setup is...
View ArticleEvaporating black holes coupled to a thermal bath
AbstractWe study the doubly holographic model of [1] in the situation where a black hole in two-dimensional JT gravity theory is coupled to an auxiliary bath system at arbitrary finite temperature....
View ArticleQuantum extremal islands made easy. Part III. Complexity on the brane
AbstractWe examine holographic complexity in the doubly holographic model introduced in [1, 2] to study quantum extremal islands. We focus on the holographic complexity=volume (CV) proposal for...
View ArticleQuantum extremal islands made easy. Part IV. Massive black holes on the brane
AbstractWe study two-dimensional eternal black holes with non-zero mass, where each asymptotic boundary is in contact with a CFT on a circle, following the doubly holographic braneworld models...
View ArticleHolographic complexity in dSd+1
AbstractWe study the CV, CA, and CV2.0 approaches to holographic complexity in (d + 1)-dimensional de Sitter spacetime. We find that holographic complexity and corresponding growth rate presents...
View ArticleComplexity equals anything II
AbstractWe expand on our results in [1] to present a broad new class of gravitational observables in asymptotically Anti-de Sitter space living on general codimension-zero regions of the bulk...
View ArticleThe cosmological switchback effect
AbstractThe volume behind the black hole horizon was suggested as a holographic dual for the quantum computational complexity of the boundary state in AdS/CFT. This identification is strongly motivated...
View ArticleComplexity=anything: singularity probes
AbstractWe investigate how the complexity=anything observables proposed by [1, 2] can be used to investigate the interior geometry of AdS black holes. In particular, we illustrate how the flexibility...
View ArticleHolography and correlation functions of huge operators: spacetime bananas
AbstractWe initiate the study of holographic correlators for operators whose dimension scales with the central charge of the CFT. Differently from light correlators or probes, the insertion of any such...
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