Random quantum circuits
Quantum circuits—built from local unitary gates and local measurements—are a new
playground for quantum many-body physics and a tractable setting to explore universal …
playground for quantum many-body physics and a tractable setting to explore universal …
Solvable models of quantum black holes: a review on Jackiw–Teitelboim gravity
We review recent developments in Jackiw–Teitelboim gravity. This is a simple solvable
model of quantum gravity in two dimensions (that arises eg from the s-wave sector of higher …
model of quantum gravity in two dimensions (that arises eg from the s-wave sector of higher …
Large N algebras and generalized entropy
V Chandrasekaran, G Penington, E Witten - Journal of High Energy …, 2023 - Springer
A bstract We construct a Type II∞ von Neumann algebra that describes the large N physics
of single-trace operators in AdS/CFT in the microcanonical ensemble, where there is no …
of single-trace operators in AdS/CFT in the microcanonical ensemble, where there is no …
Operator spreading in random unitary circuits
Random quantum circuits yield minimally structured models for chaotic quantum dynamics,
which are able to capture, for example, universal properties of entanglement growth. We …
which are able to capture, for example, universal properties of entanglement growth. We …
Remarks on the sachdev-ye-kitaev model
We study a quantum-mechanical model proposed by Sachdev, Ye and Kitaev. The model
consists of N Majorana fermions with random interactions of a few fermions at a time. It it …
consists of N Majorana fermions with random interactions of a few fermions at a time. It it …
Operator hydrodynamics, OTOCs, and entanglement growth in systems without conservation laws
Thermalization and scrambling are the subject of much recent study from the perspective of
many-body quantum systems with locally bounded Hilbert spaces (“spin chains”), quantum …
many-body quantum systems with locally bounded Hilbert spaces (“spin chains”), quantum …
Black holes and random matrices
A bstract We argue that the late time behavior of horizon fluctuations in large anti-de Sitter
(AdS) black holes is governed by the random matrix dynamics characteristic of quantum …
(AdS) black holes is governed by the random matrix dynamics characteristic of quantum …
Effective theory for the measurement-induced phase transition of Dirac fermions
A wave function subject to unitary time evolution and exposed to measurements undergoes
pure state dynamics, with deterministic unitary and probabilistic measurement-induced state …
pure state dynamics, with deterministic unitary and probabilistic measurement-induced state …
Conformal symmetry and its breaking in two-dimensional nearly anti-de Sitter space
We study a two-dimensional dilaton gravity system, recently examined by Almheiri and
Polchinski, which describes near-extremal black holes, or more generally, nearly A d S 2 …
Polchinski, which describes near-extremal black holes, or more generally, nearly A d S 2 …
A bound on chaos
A bstract We conjecture a sharp bound on the rate of growth of chaos in thermal quantum
systems with a large number of degrees of freedom. Chaos can be diagnosed using an out …
systems with a large number of degrees of freedom. Chaos can be diagnosed using an out …