Resonance splitting and broadening in axially deformed fermionic systems

The dynamics of a tridimensional, axially degenerated vibration coupled to a finite Fermi system shaped as a cylindrical reservoir in the Markovian-plus-weak-coupling regime is investigated. The vibration is aimed at representing a normal mode of the fermion system and is extracted out of a hydrodyn...

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Autores principales: Hernández, Ester Susana, Kievsky, Alejandro
Publicado: 1986
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v34_n3_p2433_Hernandez
http://hdl.handle.net/20.500.12110/paper_10502947_v34_n3_p2433_Hernandez
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spelling paper:paper_10502947_v34_n3_p2433_Hernandez2023-06-08T16:01:28Z Resonance splitting and broadening in axially deformed fermionic systems Hernández, Ester Susana Kievsky, Alejandro The dynamics of a tridimensional, axially degenerated vibration coupled to a finite Fermi system shaped as a cylindrical reservoir in the Markovian-plus-weak-coupling regime is investigated. The vibration is aimed at representing a normal mode of the fermion system and is extracted out of a hydrodynamical construction for the relative motion of a two-fluid mixture. Such a procedure provides a dispersion relation that has been proven to work properly in nuclear theory. A residual coupling between the mode and the heat reservoir constituted by the single-particle degrees of freedom is adopted and equations of irreversible evolution for the oscillator components and for the fermionic population can be obtained. This dynamical system is numerically integrated for a variety of container sizes and particle numbers and it is shown that thermodynamic magnitudes characterizing the attractor of the dynamical system, as well as typical relaxation times, can be consistently extracted from the numerical approach. © 1986 The American Physical Society. Fil:Hernández, E.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Kievsky, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1986 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v34_n3_p2433_Hernandez http://hdl.handle.net/20.500.12110/paper_10502947_v34_n3_p2433_Hernandez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description The dynamics of a tridimensional, axially degenerated vibration coupled to a finite Fermi system shaped as a cylindrical reservoir in the Markovian-plus-weak-coupling regime is investigated. The vibration is aimed at representing a normal mode of the fermion system and is extracted out of a hydrodynamical construction for the relative motion of a two-fluid mixture. Such a procedure provides a dispersion relation that has been proven to work properly in nuclear theory. A residual coupling between the mode and the heat reservoir constituted by the single-particle degrees of freedom is adopted and equations of irreversible evolution for the oscillator components and for the fermionic population can be obtained. This dynamical system is numerically integrated for a variety of container sizes and particle numbers and it is shown that thermodynamic magnitudes characterizing the attractor of the dynamical system, as well as typical relaxation times, can be consistently extracted from the numerical approach. © 1986 The American Physical Society.
author Hernández, Ester Susana
Kievsky, Alejandro
spellingShingle Hernández, Ester Susana
Kievsky, Alejandro
Resonance splitting and broadening in axially deformed fermionic systems
author_facet Hernández, Ester Susana
Kievsky, Alejandro
author_sort Hernández, Ester Susana
title Resonance splitting and broadening in axially deformed fermionic systems
title_short Resonance splitting and broadening in axially deformed fermionic systems
title_full Resonance splitting and broadening in axially deformed fermionic systems
title_fullStr Resonance splitting and broadening in axially deformed fermionic systems
title_full_unstemmed Resonance splitting and broadening in axially deformed fermionic systems
title_sort resonance splitting and broadening in axially deformed fermionic systems
publishDate 1986
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v34_n3_p2433_Hernandez
http://hdl.handle.net/20.500.12110/paper_10502947_v34_n3_p2433_Hernandez
work_keys_str_mv AT hernandezestersusana resonancesplittingandbroadeninginaxiallydeformedfermionicsystems
AT kievskyalejandro resonancesplittingandbroadeninginaxiallydeformedfermionicsystems
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