Nonequilibrium dynamics of optical-lattice-loaded Bose-Einstein-condensate atoms: Beyond the Hartree-Fock-Bogoliubov approximation
The nonequilibrium dynamics of a Bose-Einstein condensate selectively loaded into every third site of a one-dimensional optical lattice was discussed. A two-particle irreducible (2PI) closed-time-path (CTP) effective action was used for the purpose. Three different approximations under the 2PI CTP s...
Guardado en:
Publicado: |
2004
|
---|---|
Materias: | |
Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v69_n3_p033610_Rey http://hdl.handle.net/20.500.12110/paper_10502947_v69_n3_p033610_Rey |
Aporte de: |
id |
paper:paper_10502947_v69_n3_p033610_Rey |
---|---|
record_format |
dspace |
spelling |
paper:paper_10502947_v69_n3_p033610_Rey2023-06-08T16:02:12Z Nonequilibrium dynamics of optical-lattice-loaded Bose-Einstein-condensate atoms: Beyond the Hartree-Fock-Bogoliubov approximation Approximation theory Atoms Correlation methods Eigenvalues and eigenfunctions Hamiltonians Light scattering Mathematical operators Parameter estimation Perturbation techniques Problem solving Bose-Einstein condensates Closed-time-path (CTP) Optical lattices Trapped atoms Quantum theory The nonequilibrium dynamics of a Bose-Einstein condensate selectively loaded into every third site of a one-dimensional optical lattice was discussed. A two-particle irreducible (2PI) closed-time-path (CTP) effective action was used for the purpose. Three different approximations under the 2PI CTP scheme were considered. The comparisons between these approximations were presented and their range of validity by contrasting them with the exact many-body solution for a moderate number of atoms and wells was determined. 2004 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v69_n3_p033610_Rey http://hdl.handle.net/20.500.12110/paper_10502947_v69_n3_p033610_Rey |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Approximation theory Atoms Correlation methods Eigenvalues and eigenfunctions Hamiltonians Light scattering Mathematical operators Parameter estimation Perturbation techniques Problem solving Bose-Einstein condensates Closed-time-path (CTP) Optical lattices Trapped atoms Quantum theory |
spellingShingle |
Approximation theory Atoms Correlation methods Eigenvalues and eigenfunctions Hamiltonians Light scattering Mathematical operators Parameter estimation Perturbation techniques Problem solving Bose-Einstein condensates Closed-time-path (CTP) Optical lattices Trapped atoms Quantum theory Nonequilibrium dynamics of optical-lattice-loaded Bose-Einstein-condensate atoms: Beyond the Hartree-Fock-Bogoliubov approximation |
topic_facet |
Approximation theory Atoms Correlation methods Eigenvalues and eigenfunctions Hamiltonians Light scattering Mathematical operators Parameter estimation Perturbation techniques Problem solving Bose-Einstein condensates Closed-time-path (CTP) Optical lattices Trapped atoms Quantum theory |
description |
The nonequilibrium dynamics of a Bose-Einstein condensate selectively loaded into every third site of a one-dimensional optical lattice was discussed. A two-particle irreducible (2PI) closed-time-path (CTP) effective action was used for the purpose. Three different approximations under the 2PI CTP scheme were considered. The comparisons between these approximations were presented and their range of validity by contrasting them with the exact many-body solution for a moderate number of atoms and wells was determined. |
title |
Nonequilibrium dynamics of optical-lattice-loaded Bose-Einstein-condensate atoms: Beyond the Hartree-Fock-Bogoliubov approximation |
title_short |
Nonequilibrium dynamics of optical-lattice-loaded Bose-Einstein-condensate atoms: Beyond the Hartree-Fock-Bogoliubov approximation |
title_full |
Nonequilibrium dynamics of optical-lattice-loaded Bose-Einstein-condensate atoms: Beyond the Hartree-Fock-Bogoliubov approximation |
title_fullStr |
Nonequilibrium dynamics of optical-lattice-loaded Bose-Einstein-condensate atoms: Beyond the Hartree-Fock-Bogoliubov approximation |
title_full_unstemmed |
Nonequilibrium dynamics of optical-lattice-loaded Bose-Einstein-condensate atoms: Beyond the Hartree-Fock-Bogoliubov approximation |
title_sort |
nonequilibrium dynamics of optical-lattice-loaded bose-einstein-condensate atoms: beyond the hartree-fock-bogoliubov approximation |
publishDate |
2004 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v69_n3_p033610_Rey http://hdl.handle.net/20.500.12110/paper_10502947_v69_n3_p033610_Rey |
_version_ |
1768543383724228608 |