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Abstract:

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.

Registro:

Documento: Artículo
Título:Nonequilibrium dynamics of optical-lattice-loaded Bose-Einstein-condensate atoms: Beyond the Hartree-Fock-Bogoliubov approximation
Autor:Rey, A.M.; Hu, B.L.; Calzetta, E.; Roura, A.; Clark, C.W.
Filiación:Department of Physics, University of Maryland, College Park, MD 20742, United States
U. S. Department of Commerce, Natl. Inst. of Std. and Technology, Technology Administration, Gaithersburg, MD 20899-8410, United States
Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina
Palabras clave: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
Año:2004
Volumen:69
Número:3
Página de inicio:033610
Página de fin:1-033610-21
DOI: http://dx.doi.org/10.1103/PhysRevA.69.033610
Título revista:Physical Review A - Atomic, Molecular, and Optical Physics
Título revista abreviado:Phys Rev A
ISSN:10502947
CODEN:PLRAA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v69_n3_p033610_Rey

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Citas:

---------- APA ----------
Rey, A.M., Hu, B.L., Calzetta, E., Roura, A. & Clark, C.W. (2004) . Nonequilibrium dynamics of optical-lattice-loaded Bose-Einstein-condensate atoms: Beyond the Hartree-Fock-Bogoliubov approximation. Physical Review A - Atomic, Molecular, and Optical Physics, 69(3), 033610-1-033610-21.
http://dx.doi.org/10.1103/PhysRevA.69.033610
---------- CHICAGO ----------
Rey, A.M., Hu, B.L., Calzetta, E., Roura, A., Clark, C.W. "Nonequilibrium dynamics of optical-lattice-loaded Bose-Einstein-condensate atoms: Beyond the Hartree-Fock-Bogoliubov approximation" . Physical Review A - Atomic, Molecular, and Optical Physics 69, no. 3 (2004) : 033610-1-033610-21.
http://dx.doi.org/10.1103/PhysRevA.69.033610
---------- MLA ----------
Rey, A.M., Hu, B.L., Calzetta, E., Roura, A., Clark, C.W. "Nonequilibrium dynamics of optical-lattice-loaded Bose-Einstein-condensate atoms: Beyond the Hartree-Fock-Bogoliubov approximation" . Physical Review A - Atomic, Molecular, and Optical Physics, vol. 69, no. 3, 2004, pp. 033610-1-033610-21.
http://dx.doi.org/10.1103/PhysRevA.69.033610
---------- VANCOUVER ----------
Rey, A.M., Hu, B.L., Calzetta, E., Roura, A., Clark, C.W. Nonequilibrium dynamics of optical-lattice-loaded Bose-Einstein-condensate atoms: Beyond the Hartree-Fock-Bogoliubov approximation. Phys Rev A. 2004;69(3):033610-1-033610-21.
http://dx.doi.org/10.1103/PhysRevA.69.033610