Results 41 to 50 of about 89,731 (215)
Many-body Quantum Chaos and Entanglement in a Quantum Ratchet [PDF]
, 2017 We uncover signatures of quantum chaos in the many-body dynamics of a Bose-Einstein condensate-based quantum ratchet in a toroidal trap. We propose measures including entanglement, condensate depletion, and spreading over a fixed basis in many-body ...
Carr, Lincoln D. +5 more
core +3 more sources
Entanglement dynamics in chaotic systems [PDF]
, 2004 We study quantum chaos for systems with more than one degree of freedom, for which we present an analysis of the dynamics of entanglement. Our analysis explains the main features of entanglement dynamics and identifies entanglement-based signatures of ...
Ghose, Shohini, Sanders, Barry C.
core +4 more sources
Different Facets of Chaos in Quantum Mechanics
, 1999 Nowadays there is no universally accepted definition of quantum chaos. In this paper we review and critically discuss different approaches to the subject, such as Quantum Chaology and the Random Matrix Theory.
Berry M. V. +11 more
core +2 more sources
Generalized spectral form factors and the statistics of heavy operators
Journal of High Energy Physics, 2022 The spectral form factor is a powerful probe of quantum chaos that diagnoses the statistics of energy levels, but is blind to other features of a theory such as matrix elements of operators or OPE coefficients in conformal field theories.
Alexandre Belin +3 more
doaj +1 more source
Quantum correlations from Brownian diffusion of chaotic level-spacings [PDF]
, 2004 Quantum chaos is linked to Brownian diffusion of the underlying quantum energy level-spacing sequences. The level-spacings viewed as functions of their order execute random walks which imply uncorrelated random increments of the level-spacings while the ...
Bandyopadhyay +19 more
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Classical and quantum chaos in a circular billiard with a straight cut
, 1998 We study classical and quantum dynamics of a particle in a circular billiard with a straight cut. This system can be integrable, nonintegrable with soft chaos, or nonintegrable with hard chaos, as we vary the size of the cut. We use a quantum web to show
A. Peres +27 more
core +2 more sources
Quantum Chaos Border for Quantum Computing [PDF]
, 1999 We study a generic model of quantum computer, composed of many qubits coupled by short-range interaction. Above a critical interqubit coupling strength, quantum chaos sets in, leading to quantum ergodicity of the computer eigenstates.
A. Steane +28 more
core +2 more sources
About the Concept of Quantum Chaos
Entropy, 2017 The research on quantum chaos finds its roots in the study of the spectrum of complex nuclei in the 1950s and the pioneering experiments in microwave billiards in the 1970s. Since then, a large number of new results was produced.
Ignacio S. Gomez +2 more
doaj +1 more source
Numerical simulation on many-body quantum chaos of ultracold atoms with synthetic gauge fields
Results in Physics, 2022 We investigate the quantum chaos of ultracold atoms in a quadruple-well potential, emphasizing the influence of synthetic gauge fields and many-body atomic interactions on the transitions from regular behavior to quantum chaos.
Wen-Yuan Wang, Wen-Lei Zhao, Jie Liu
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Pracì Mìžnarodnogo Geometričnogo Centru, 2015 Work is devoted to the development of the theoretical foundations of the universal new relativistic chaos-geometric and quantum-dynamic approach that consistently includes a number of new relativistic quantum models and a number of new or improved ...
Александр Васильевич Глушков +3 more
doaj +1 more source