Dynamics of Loschmidt echoes and fidelity decay
Fidelity serves as a benchmark for the reliability in quantum information processes, and has
recently attracted much interest as a measure of the susceptibility of dynamics to …
recently attracted much interest as a measure of the susceptibility of dynamics to …
Decoherence, entanglement and irreversibility in quantum dynamical systems with few degrees of freedom
P Jacquod, C Petitjean - Advances in Physics, 2009 - Taylor & Francis
In this review we summarize and amplify recent investigations of coupled quantum
dynamical systems with few degrees of freedom in the short-wavelength, semiclassical limit …
dynamical systems with few degrees of freedom in the short-wavelength, semiclassical limit …
Lyapunov exponent and out-of-time-ordered correlator's growth rate in a chaotic system
It was proposed recently that the out-of-time-ordered four-point correlator (OTOC) may serve
as a useful characteristic of quantum-chaotic behavior, because, in the semiclassical limit …
as a useful characteristic of quantum-chaotic behavior, because, in the semiclassical limit …
Quantum and classical Lyapunov exponents in atom-field interaction systems
J Chávez-Carlos, B López-del-Carpio… - Physical review …, 2019 - APS
The exponential growth of the out-of-time-ordered correlator (OTOC) has been proposed as
a quantum signature of classical chaos. The growth rate is expected to coincide with the …
a quantum signature of classical chaos. The growth rate is expected to coincide with the …
[PDF][PDF] Loschmidt echo
arXiv:1206.6348v1 [nlin.CD] 27 Jun 2012 Page 1 arXiv:1206.6348v1 [nlin.CD] 27 Jun 2012
Loschmidt Echo Arseni Goussev1, Rodolfo A. Jalabert2, Horacio M. Pastawski3, and Diego …
Loschmidt Echo Arseni Goussev1, Rodolfo A. Jalabert2, Horacio M. Pastawski3, and Diego …
Decoherence and the Loschmidt echo
Decoherence causes entropy increase that can be quantified using, eg, the purity ς= T r ρ 2.
When the Hamiltonian of a quantum system is perturbed, its sensitivity to such perturbation …
When the Hamiltonian of a quantum system is perturbed, its sensitivity to such perturbation …
Dynamical manifestations of quantum chaos: correlation hole and bulge
EJ Torres-Herrera, LF Santos - … Transactions of the …, 2017 - royalsocietypublishing.org
A main feature of a chaotic quantum system is a rigid spectrum where the levels do not
cross. We discuss how the presence of level repulsion in lattice many-body quantum …
cross. We discuss how the presence of level repulsion in lattice many-body quantum …
Timescales in the quench dynamics of many-body quantum systems: Participation ratio versus out-of-time ordered correlator
We study quench dynamics in the many-body Hilbert space using two isolated systems with
a finite number of interacting particles: a paradigmatic model of randomly interacting bosons …
a finite number of interacting particles: a paradigmatic model of randomly interacting bosons …
Sensitivity of quantum information to environment perturbations measured with a nonlocal out-of-time-order correlation function
In a quantum system coupled with a non-Markovian environment, quantum information may
flow out of or into the system. Measuring quantum information flow and its sensitivity to …
flow out of or into the system. Measuring quantum information flow and its sensitivity to …
Dynamical aspects of quantum entanglement for weakly coupled kicked tops
H Fujisaki, T Miyadera, A Tanaka - Physical Review E, 2003 - APS
We investigate how the dynamical production of quantum entanglement for weakly coupled,
composite quantum systems is influenced by the chaotic dynamics of the corresponding …
composite quantum systems is influenced by the chaotic dynamics of the corresponding …