Exotic Stochastic Processes from Complex Quantum Environments

Exotic Stochastic Processes from Complex Quantum Environments

Stochastic processes are shown to emerge from the time evolution of complex quantum systems. Using parametric, banded random matrix ensembles to describe a quantum chaotic environment, we show that the dynamical evolution of a particle coupled to such environments displays a variety of stochastic be...

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Veröffentlicht in:arXiv.org 1999-11
Hauptverfasser: Kusnezov, Dimitri, Bulgac, Aurel, Giu Do Dang
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Sprache:eng
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Brownian motion
Evolution
Kinetic theory
Stochastic models
Stochastic processes
Turbulent diffusion
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Giu Do Dang
description Stochastic processes are shown to emerge from the time evolution of complex quantum systems. Using parametric, banded random matrix ensembles to describe a quantum chaotic environment, we show that the dynamical evolution of a particle coupled to such environments displays a variety of stochastic behaviors, ranging from turbulent diffusion to Lévy processes and Brownian motion. Dissipation and diffusion emerge naturally in the stochastic interpretation of the dynamics. This approach provides a derivation of a fractional kinetic theory in the classical limit and leads to classical Lévy dynamics.
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subjects Brownian motion
Evolution
Kinetic theory
Stochastic models
Stochastic processes
Turbulent diffusion
title Exotic Stochastic Processes from Complex Quantum Environments
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