Results 31 to 40 of about 89,731 (215)

Chaos in a double driven dissipative nonlinear oscillator [PDF]

open access: yes, 2001
We propose an anharmonic oscillator driven by two periodic forces of different frequencies as a new time-dependent model for investigating quantum dissipative chaos.
A. Bandyopadhyay   +57 more
core   +2 more sources

Quantum-classical mechanics as an alternative to quantum mechanics in molecular and chemical physics

open access: yesHeliyon, 2019
In quantum mechanics, the theory of quantum transitions is grounded on the convergence of a series of time-dependent perturbation theory. In nuclear and atomic physics, this series converges because the dynamics of quantum transitions (quantum jumps) are
Vladimir V. Egorov
doaj   +1 more source

Chaos and quantum thermalization [PDF]

open access: yesPhysical Review E, 1994
28 pages in Plain TeX plus 2 uuencoded PS figures (included); minor corrections only, this version will be published in Phys. Rev.
openaire   +3 more sources

Recent Developments in the Holographic Description of Quantum Chaos

open access: yesAdvances in High Energy Physics, 2019
We review recent developments encompassing the description of quantum chaos in holography. We discuss the characterization of quantum chaos based on the late time vanishing of out-of-time-order correlators and explain how this is realized in the dual ...
Viktor Jahnke
doaj   +1 more source

Semiclassical properties and chaos degree for the quantum baker's map [PDF]

open access: yes, 2001
We study the chaotic behaviour and the quantum-classical correspondence for the baker's map. Correspondence between quantum and classical expectation values is investigated and it is numerically shown that it is lost at the logarithmic timescale.
Arefeva I. Y.   +21 more
core   +2 more sources

Chaos and high temperature pure state thermalization

open access: yesJournal of High Energy Physics, 2019
Classical arguments for thermalization of isolated systems do not apply in a straightforward way to the quantum case. Recently, there has been interest in diagnostics of quantum chaos in many-body systems.
Yuri D. Lensky, Xiao-Liang Qi
doaj   +1 more source

Probing quantum chaos in multipartite systems

open access: yesPhysical Review Research, 2022
Understanding the emergence of quantum chaos in multipartite systems is challenging in the presence of interactions. We show that the contribution of the subsystems to the global behavior can be revealed by probing the full counting statistics of the ...
Zan Cao, Zhenyu Xu, Adolfo del Campo
doaj   +1 more source

Quantum chaos and quantum algorithms [PDF]

open access: yesPhysical Review A, 2002
It was recently shown (quant-ph/9909074) that parasitic random interactions between the qubits in a quantum computer can induce quantum chaos and put into question the operability of a quantum computer. In this work I investigate whether already the interactions between the qubits introduced with the intention to operate the quantum computer may lead ...
openaire   +2 more sources

Quantum coherence as a signature of chaos

open access: yesPhysical Review Research, 2021
We establish a rigorous connection between quantum coherence and quantum chaos by employing coherence measures originating from the resource theory framework as a diagnostic tool for quantum chaos.
Namit Anand   +3 more
doaj   +1 more source

Quantum Particle Swarm Optimization Extraction Algorithm Based on Quantum Chaos Encryption

open access: yesComplexity, 2021
Considering the highly complex structure of quantum chaos and the nonstationary characteristics of speech signals, this paper proposes a quantum chaotic encryption and quantum particle swarm extraction method based on an underdetermined model.
Chao Li   +3 more
doaj   +1 more source

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