Lifetime of interference effects in collisional time-dependent Hartree-Fock dynamics

A kinetic equation in operator form for the one body density matrix is derived by means of a convenient truncation of the quantal Bogoliubov-Born-Green-Kirkwood-Yvon hierarchy. Using projection techniques in a procedure similar to the derivation of the master equation, the evolution of the diagonal...

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Autores principales: Dorso, C.O., Hernãndez, E.S.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_05562813_v26_n2_p528_Dorso
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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_v26_n2_p528_Dorso2023-10-03T15:34:30Z Lifetime of interference effects in collisional time-dependent Hartree-Fock dynamics Dorso, C.O. Hernãndez, E.S. A kinetic equation in operator form for the one body density matrix is derived by means of a convenient truncation of the quantal Bogoliubov-Born-Green-Kirkwood-Yvon hierarchy. Using projection techniques in a procedure similar to the derivation of the master equation, the evolution of the diagonal and the nondiagonal terms of the density matrix can be disentangled. A quantal, non-Hermitian master equation for the diagonal part is extracted and it is seen that corrections to the collision frequency or to the relaxation time arise as a consequence of the creation and destruction of incoherent events. NUCLEAR REACTIONS Reduced one body density matrix, BBGKY hierarchy, quantal kinetic equation, coupling between probabilistic and interference matrix element, collision frequency and relaxation time, dynamical quantal corrections. © 1982 The American Physical Society. Fil:Dorso, C.O. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Hernãndez, E.S. 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_v26_n2_p528_Dorso
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description A kinetic equation in operator form for the one body density matrix is derived by means of a convenient truncation of the quantal Bogoliubov-Born-Green-Kirkwood-Yvon hierarchy. Using projection techniques in a procedure similar to the derivation of the master equation, the evolution of the diagonal and the nondiagonal terms of the density matrix can be disentangled. A quantal, non-Hermitian master equation for the diagonal part is extracted and it is seen that corrections to the collision frequency or to the relaxation time arise as a consequence of the creation and destruction of incoherent events. NUCLEAR REACTIONS Reduced one body density matrix, BBGKY hierarchy, quantal kinetic equation, coupling between probabilistic and interference matrix element, collision frequency and relaxation time, dynamical quantal corrections. © 1982 The American Physical Society.
format JOUR
author Dorso, C.O.
Hernãndez, E.S.
spellingShingle Dorso, C.O.
Hernãndez, E.S.
Lifetime of interference effects in collisional time-dependent Hartree-Fock dynamics
author_facet Dorso, C.O.
Hernãndez, E.S.
author_sort Dorso, C.O.
title Lifetime of interference effects in collisional time-dependent Hartree-Fock dynamics
title_short Lifetime of interference effects in collisional time-dependent Hartree-Fock dynamics
title_full Lifetime of interference effects in collisional time-dependent Hartree-Fock dynamics
title_fullStr Lifetime of interference effects in collisional time-dependent Hartree-Fock dynamics
title_full_unstemmed Lifetime of interference effects in collisional time-dependent Hartree-Fock dynamics
title_sort lifetime of interference effects in collisional time-dependent hartree-fock dynamics
url http://hdl.handle.net/20.500.12110/paper_05562813_v26_n2_p528_Dorso
work_keys_str_mv AT dorsoco lifetimeofinterferenceeffectsincollisionaltimedependenthartreefockdynamics
AT hernandezes lifetimeofinterferenceeffectsincollisionaltimedependenthartreefockdynamics
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