Geometry and time scales of self-consistent orbits in a modified SU(2) model

We investigate the time-dependent Hartree-Fock flow pattern of a two-level many fermion system interacting via a two-body interaction which does not preserve the parity symmetry of standard SU(2) models. The geometrical features of the time-dependent Hartree-Fock energy surface are analyzed and a ph...

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Autores principales: Jezek, Dora Marta, Hernández, Ester Susana, Solari, Hernán Gustavo
Publicado: 1986
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562813_v34_n1_p297_Jezek
http://hdl.handle.net/20.500.12110/paper_05562813_v34_n1_p297_Jezek
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_05562813_v34_n1_p297_Jezek
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spelling paper:paper_05562813_v34_n1_p297_Jezek2023-06-08T15:41:30Z Geometry and time scales of self-consistent orbits in a modified SU(2) model Jezek, Dora Marta Hernández, Ester Susana Solari, Hernán Gustavo We investigate the time-dependent Hartree-Fock flow pattern of a two-level many fermion system interacting via a two-body interaction which does not preserve the parity symmetry of standard SU(2) models. The geometrical features of the time-dependent Hartree-Fock energy surface are analyzed and a phase instability is clearly recognized. The time evolution of one-body observables along self-consistent and exact trajectories are examined together with the overlaps between both orbits. Typical time scales for the determinantal motion can be set and the validity of the time-dependent Hartree-Fock approach in the various regions of quasispin phase space is discussed. © 1986 The American Physical Society. Fil:Jezek, D.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Hernández, E.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Solari, H.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1986 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562813_v34_n1_p297_Jezek http://hdl.handle.net/20.500.12110/paper_05562813_v34_n1_p297_Jezek
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description We investigate the time-dependent Hartree-Fock flow pattern of a two-level many fermion system interacting via a two-body interaction which does not preserve the parity symmetry of standard SU(2) models. The geometrical features of the time-dependent Hartree-Fock energy surface are analyzed and a phase instability is clearly recognized. The time evolution of one-body observables along self-consistent and exact trajectories are examined together with the overlaps between both orbits. Typical time scales for the determinantal motion can be set and the validity of the time-dependent Hartree-Fock approach in the various regions of quasispin phase space is discussed. © 1986 The American Physical Society.
author Jezek, Dora Marta
Hernández, Ester Susana
Solari, Hernán Gustavo
spellingShingle Jezek, Dora Marta
Hernández, Ester Susana
Solari, Hernán Gustavo
Geometry and time scales of self-consistent orbits in a modified SU(2) model
author_facet Jezek, Dora Marta
Hernández, Ester Susana
Solari, Hernán Gustavo
author_sort Jezek, Dora Marta
title Geometry and time scales of self-consistent orbits in a modified SU(2) model
title_short Geometry and time scales of self-consistent orbits in a modified SU(2) model
title_full Geometry and time scales of self-consistent orbits in a modified SU(2) model
title_fullStr Geometry and time scales of self-consistent orbits in a modified SU(2) model
title_full_unstemmed Geometry and time scales of self-consistent orbits in a modified SU(2) model
title_sort geometry and time scales of self-consistent orbits in a modified su(2) model
publishDate 1986
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562813_v34_n1_p297_Jezek
http://hdl.handle.net/20.500.12110/paper_05562813_v34_n1_p297_Jezek
work_keys_str_mv AT jezekdoramarta geometryandtimescalesofselfconsistentorbitsinamodifiedsu2model
AT hernandezestersusana geometryandtimescalesofselfconsistentorbitsinamodifiedsu2model
AT solarihernangustavo geometryandtimescalesofselfconsistentorbitsinamodifiedsu2model
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