Results 1 to 10 of about 521,019 (237)

Quantum chaos in a weakly-coupled field theory with nonlocality

open access: yesJournal of High Energy Physics, 2022
In order to study the chaotic behavior of a system with non-local interactions, we will consider weakly coupled non-commutative field theories. We compute the Lyapunov exponent of this exponential growth in the large Moyal-scale limit to leading order in
Willy Fischler   +2 more
doaj   +1 more source

Scrambling and Lyapunov exponent in spatially extended systems

open access: yes, 2021
Scrambling of information in a quantum many-body system, quantified by the out-of-time-ordered correlator (OTOC), is a key manifestation of quantum chaos. A regime of exponential growth in the OTOC, characterized by a Lyapunov exponent, has so far mostly
A. Keselman, L. Nie, E. Berg
semanticscholar   +1 more source

CHAOTIC VIBRATION OF BUCKLED BEAMS AND PLATES [PDF]

open access: yesINCAS Bulletin, 2009
The great developing of numerical analysis of the dynamic systems emphasizes the existence of astrong dependence of the initial conditions, described in the phase plane by attractors with acomplicated geometrical structure.
Daniela BARAN
doaj   +1 more source

An Improved Calculation Formula of the Extended Entropic Chaos Degree and Its Application to Two-Dimensional Chaotic Maps

open access: yesEntropy, 2021
The Lyapunov exponent is primarily used to quantify the chaos of a dynamical system. However, it is difficult to compute the Lyapunov exponent of dynamical systems from a time series.
Kei Inoue
doaj   +1 more source

Localization for the one-dimensional Anderson model via positivity and large deviations for the Lyapunov exponent [PDF]

open access: yesTransactions of the American Mathematical Society, 2017
We provide a complete and self-contained proof of spectral and dynamical localization for the one-dimensional Anderson model, starting from the positivity of the Lyapunov exponent provided by F\"urstenberg's theorem. That is, a Schr\"odinger operator in $
Valmir Bucaj   +6 more
semanticscholar   +1 more source

Cascade of Invariant Curve Doubling Bifurcations and Quasi-Periodic Hénon Attractor in the Discrete Lorenz-84 Model [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Физика, 2020
Background and Objectives: Chaotic behavior is one of the fundamental properties of nonlinear dynamical systems, including maps. Chaos can be most easily and reliably diagnosed using the largest Lyapunov exponent, which will be positive for the chaotic ...
Popova, Elena Sergeevna   +2 more
doaj   +1 more source

Largest Lyapunov Exponent Parameter of Stiffened Carbon Fiber Reinforced Epoxy Composite Laminated Plate Due to Critical Buckling Load Using Average Logarithmic Divergence Approach

open access: yesMathematics, 2022
The purpose of this study is to calculate the bending deflection which is used to investigate the largest Lyapunov exponent due to buckling load. The design methodology is to calculate the largest Lyapunov exponent parameter at different thickness ratios
Louay S. Yousuf
doaj   +1 more source

Lyapunov Exponent and Out-of-Time-Ordered Correlator's Growth Rate in a Chaotic System. [PDF]

open access: yesPhysical Review Letters, 2016
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 ℏ→0, its rate of exponential growth resembles the classical Lyapunov ...
E. Rozenbaum, S. Ganeshan, V. Galitski
semanticscholar   +1 more source

Dynamics and Complexity Analysis of Fractional-Order Chaotic Systems with Line Equilibrium Based on Adomian Decomposition

open access: yesComplexity, 2020
In this paper, the Adomian decomposition method (ADM) is applied to solve the fractional-order system with line equilibrium. The dynamics of the system is analyzed by means of the Lyapunov exponent spectrum, bifurcations, chaotic attractor, and largest ...
Heng Chen   +5 more
doaj   +1 more source

A random cocycle with non Hölder Lyapunov exponent [PDF]

open access: yesDiscrete and Continuous Dynamical Systems. Series A, 2018
We provide an example of a Schr\"odinger cocycle over a mixing Markov shift for which the integrated density of states has a very weak modulus of continuity, close to the log-H\"older lower bound established by W. Craig and B. Simon.
P. Duarte   +2 more
semanticscholar   +1 more source

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