Many-body dynamics on a time-dependent basis
We propose a method of solution of the many-body Schrödinger equation that involves an expansion of the wave function in terms of a finite, time-dependent basis of a relevant subspace. The equations of motion for the expansion coefficients generalize previous proposals of approximate dynamics. The m...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_10502947_v38_n9_p4455_Hernandez |
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todo:paper_10502947_v38_n9_p4455_Hernandez2023-10-03T15:58:49Z Many-body dynamics on a time-dependent basis Hernandez, E.S. Jezek, D.M. We propose a method of solution of the many-body Schrödinger equation that involves an expansion of the wave function in terms of a finite, time-dependent basis of a relevant subspace. The equations of motion for the expansion coefficients generalize previous proposals of approximate dynamics. The method is illustrated in the case of an N-particle system with an SU(2) Hamiltonian, and it is shown that it improves the approximation that disregards off-diagonal elements of the dynamical matrices. © 1988 The American Physical Society. Fil:Hernandez, E.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Jezek, D.M. 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_10502947_v38_n9_p4455_Hernandez |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
We propose a method of solution of the many-body Schrödinger equation that involves an expansion of the wave function in terms of a finite, time-dependent basis of a relevant subspace. The equations of motion for the expansion coefficients generalize previous proposals of approximate dynamics. The method is illustrated in the case of an N-particle system with an SU(2) Hamiltonian, and it is shown that it improves the approximation that disregards off-diagonal elements of the dynamical matrices. © 1988 The American Physical Society. |
| format |
JOUR |
| author |
Hernandez, E.S. Jezek, D.M. |
| spellingShingle |
Hernandez, E.S. Jezek, D.M. Many-body dynamics on a time-dependent basis |
| author_facet |
Hernandez, E.S. Jezek, D.M. |
| author_sort |
Hernandez, E.S. |
| title |
Many-body dynamics on a time-dependent basis |
| title_short |
Many-body dynamics on a time-dependent basis |
| title_full |
Many-body dynamics on a time-dependent basis |
| title_fullStr |
Many-body dynamics on a time-dependent basis |
| title_full_unstemmed |
Many-body dynamics on a time-dependent basis |
| title_sort |
many-body dynamics on a time-dependent basis |
| url |
http://hdl.handle.net/20.500.12110/paper_10502947_v38_n9_p4455_Hernandez |
| work_keys_str_mv |
AT hernandezes manybodydynamicsonatimedependentbasis AT jezekdm manybodydynamicsonatimedependentbasis |
| _version_ |
1807324077849837568 |