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...

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Detalles Bibliográficos
Publicado: 2004
Materias:
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
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:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_10502947_v69_n3_p033610_Rey
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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

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