Results 31 to 40 of about 1,155,601 (235)

Chaos in coupled Kerr-nonlinear parametric oscillators

open access: yesPhysical Review Research, 2021
A Kerr-nonlinear parametric oscillator (KPO) can generate a quantum superposition of two oscillating states, known as a Schrödinger cat state, via quantum adiabatic evolution and can be used as a qubit for gate-based quantum computing and quantum ...
Hayato Goto, Taro Kanao
doaj   +1 more source

A quantum correction to chaos [PDF]

open access: yesJournal of High Energy Physics, 2016
We use results on Virasoro conformal blocks to study chaotic dynamics in CFT$_2$ at large central charge c. The Lyapunov exponent $λ_L$, which is a diagnostic for the early onset of chaos, receives $1/c$ corrections that may be interpreted as $λ_L = \frac{2 π}β \left( 1 + \frac{12}{c} \right)$.
Fitzpatrick, A., Kaplan, Jared
openaire   +3 more sources

A modal-Hamiltonian interpretation of quantum mechanics [PDF]

open access: yes, 2008
The aim of this paper is to introduce a new member of the family of the modal interpretations of quantum mechanics. In this modal-Hamiltonian interpretation, the Hamiltonian of the quantum system plays a decisive role in the property-ascription rule that
Castagnino, Mario   +3 more
core   +1 more source

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

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

From spectral statistics to decay in quantum chaotic systems: a semiclassical analysis beyond Random Matrix Theory [PDF]

open access: yes, 2009
The semiclassical approximation has been the main tool to connect classical and quantum mechanics, and some properties of classical chaotic systems with their quantum counterpart.
Gutiérrez Márquez, Martha Lucía
core   +1 more source

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

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

Spectral and wave function statistics in Quantum digraphs [PDF]

open access: yes, 2012
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Spectral and wave function statistics of the quantum directed graph, QdG, are studied.
Megaides, Rodrigo
core   +7 more sources

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