dorsal/arxiv
View SchemaQuantum Dissipation
| Authors | Aurel Bulgac, Giu Do Dang, Dimitri Kusnezov |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9507034 |
| URL | https://arxiv.org/abs/nucl-th/9507034 |
Abstract
We address the question of the microscopic origin of dissipation in collective motion of a quantum many--body system in the framework of a parametric random matrix approach to the intrinsic dynamics. We show that the fluctuation--dissipation theorem is generally violated and, moreover, energy diffusion has a markedly non--Gaussian character and the corresponding distribution has very long tails. Such features do not support a Langevin or Fokker--Planck approach to dissipation in collective nuclear motion.
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"abstract": "We address the question of the microscopic origin of dissipation in\ncollective motion of a quantum many--body system in the framework of a\nparametric random matrix approach to the intrinsic dynamics. We show that the\nfluctuation--dissipation theorem is generally violated and, moreover, energy\ndiffusion has a markedly non--Gaussian character and the corresponding\ndistribution has very long tails. Such features do not support a Langevin or\nFokker--Planck approach to dissipation in collective nuclear motion.",
"arxiv_id": "nucl-th/9507034",
"authors": [
"Aurel Bulgac",
"Giu Do Dang",
"Dimitri Kusnezov"
],
"categories": [
"nucl-th"
],
"title": "Quantum Dissipation",
"url": "https://arxiv.org/abs/nucl-th/9507034"
},
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