Results 51 to 60 of about 1,557,339 (268)
Low temperature quantum bounds on simple models
SciPost Physics, 2022 In the past few years, there has been considerable activity around a set of quantum bounds on transport coefficients (viscosity) and chaos (Lyapunov exponent), relevant at low temperatures.
Silvia Pappalardi, Jorge Kurchan
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Nelineinaya Dinamika, 2006 A short historical overview is given on the development of our knowledge of complex dynamical systems with special emphasis on ergodicity and chaos, and on the semiclassical quantization of integrable and chaotic systems. The general trace formula is discussed as a sound mathematical basis for the semiclassical quantization of chaos.
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Avoiding quantum chaos in quantum computation [PDF]
Physical Review E, 2001 We study a one-dimensional chain of nuclear $1/2-$spins in an external time-dependent magnetic field. This model is considered as a possible candidate for experimental realization of quantum computation. According to the general theory of interacting particles, one of the most dangerous effects is quantum chaos which can destroy the stability of ...
Berman, G. P. +3 more
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Proposal for many-body quantum chaos detection [PDF]
Physical Review ResearchIn this work, the term “quantum chaos” refers to spectral correlations similar to those found in the random matrix theory. Quantum chaos can be diagnosed through the analysis of level statistics using, e.g., the spectral form factor, which detects both ...
A. Das +10 more
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Quantum chaos in triangular billiards [PDF]
Physical Review Research, 2021 We present an extensive numerical study of spectral statistics and eigenfunctions of quantized triangular billiards. We compute two million consecutive eigenvalues for six representative cases of triangular billiards, three with generic angles with ...
Č. Lozej, G. Casati, T. Prosen
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Quantum chaos in the sparse SYK model [PDF]
Journal of High Energy PhysicsThe Sachdev-Ye-Kitaev (SYK) model is a system of N Majorana fermions with random interactions and strongly chaotic dynamics, which at low energy admits a holographically dual description as two-dimensional Jackiw-Teitelboim gravity.
Patrick Orman +2 more
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Nonlinear dynamics and quantum chaos of a family of kicked p-spin models. [PDF]
Physical Review E, 2021 We introduce kicked p-spin models describing a family of transverse Ising-like models for an ensemble of spin-1/2 particles with all-to-all p-body interaction terms occurring periodically in time as delta-kicks.
M. Muñoz-Arias, P. Poggi, I. Deutsch
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Interacting bosons in a triple well: Preface of many-body quantum chaos. [PDF]
Physical Review E, 2021 Systems of interacting bosons in triple-well potentials are of significant theoretical and experimental interest. They are explored in contexts that range from quantum phase transitions and quantum dynamics to semiclassical analysis.
K. Wittmann W. +3 more
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Entropy, chaos and excited-state quantum phase transitions in the Dicke model [PDF]
, 2016 We study non-equilibrium processes in an isolated quantum system ---the Dicke model--- focusing on the role played by the transition from integrability to chaos and the presence of excited-state quantum phase transitions.
Lóbez, C. M., Relaño, A.
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