dorsal/arxiv
View SchemaOne-body dissipation and chaotic dynamics in a classical simulation of a nuclear gas
| Authors | M. Baldo, G. F. Burgio, A. Rapisarda, P. Schuck |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9611018 |
| URL | https://arxiv.org/abs/nucl-th/9611018 |
| DOI | 10.1103/PhysRevC.58.2821 |
| Journal | Phys.Rev.C58:2821-2830,1998 |
Abstract
In order to understand the origin of one-body dissipation in nuclei, we analyze the behavior of a gas of classical particles moving in a two-dimensional cavity with nuclear dimensions. This "nuclear" billiard has multipole-deformed walls which undergo periodic shape oscillations. We demonstrate that a single particle Hamiltonian containing coupling terms between the particles' motion and the collective coordinate induces a chaotic dynamics for any multipolarity, independently on the geometry of the billiard. If the coupling terms are switched off the "wall formula" predictions are recovered. We discuss the dissipative behavior of the wall motion and its relation with the order-to-chaos transition in the dynamics of the microscopic degrees of freedom.
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"abstract": "In order to understand the origin of one-body dissipation in nuclei, we\nanalyze the behavior of a gas of classical particles moving in a\ntwo-dimensional cavity with nuclear dimensions. This \"nuclear\" billiard has\nmultipole-deformed walls which undergo periodic shape oscillations. We\ndemonstrate that a single particle Hamiltonian containing coupling terms\nbetween the particles\u0027 motion and the collective coordinate induces a chaotic\ndynamics for any multipolarity, independently on the geometry of the billiard.\nIf the coupling terms are switched off the \"wall formula\" predictions are\nrecovered. We discuss the dissipative behavior of the wall motion and its\nrelation with the order-to-chaos transition in the dynamics of the microscopic\ndegrees of freedom.",
"arxiv_id": "nucl-th/9611018",
"authors": [
"M. Baldo",
"G. F. Burgio",
"A. Rapisarda",
"P. Schuck"
],
"categories": [
"nucl-th",
"chao-dyn",
"nlin.CD"
],
"doi": "10.1103/PhysRevC.58.2821",
"journal_ref": "Phys.Rev.C58:2821-2830,1998",
"title": "One-body dissipation and chaotic dynamics in a classical simulation of a nuclear gas",
"url": "https://arxiv.org/abs/nucl-th/9611018"
},
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