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, D.M., Hernández, E.S., Solari, H.G.
Formato: JOUR
Acceso en línea: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
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spelling todo:paper_05562813_v34_n1_p297_Jezek2023-10-03T15:34:34Z Geometry and time scales of self-consistent orbits in a modified SU(2) model Jezek, D.M. Hernández, E.S. Solari, H.G. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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.
format JOUR
author Jezek, D.M.
Hernández, E.S.
Solari, H.G.
spellingShingle Jezek, D.M.
Hernández, E.S.
Solari, H.G.
Geometry and time scales of self-consistent orbits in a modified SU(2) model
author_facet Jezek, D.M.
Hernández, E.S.
Solari, H.G.
author_sort Jezek, D.M.
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
url http://hdl.handle.net/20.500.12110/paper_05562813_v34_n1_p297_Jezek
work_keys_str_mv AT jezekdm geometryandtimescalesofselfconsistentorbitsinamodifiedsu2model
AT hernandezes geometryandtimescalesofselfconsistentorbitsinamodifiedsu2model
AT solarihg geometryandtimescalesofselfconsistentorbitsinamodifiedsu2model
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