Superfluidity and collective oscillations of trapped Bose-Einstein condensates in a periodical potential

Based on a unified theoretical treatment of the 1D Bogoliubov-de Genes equations, the superfluidity phenomenon of the Bose-Einstein condensates (BEC) loaded into trapped optical lattice is studied. Within the perturbation regime, an all-analytical framework is presented enabling a straightforward ph...

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Veröffentlicht in:	The European physical journal. D, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2012-07, Vol.66 (7), Article 177
Hauptverfasser:	Trallero-Giner, C., López-Richard, V., Núñez-Fernández, Y., Oliva, M., Marques, G. E., Chung, M. C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applications of Nonlinear Dynamics and Chaos Theory Atomic Classical and quantum physics: mechanics and fields Exact sciences and technology Matter waves Molecular Optical and Plasma Physics Physical Chemistry Physics Physics and Astronomy Quantum Information Technology Quantum Physics Regular Article Spectroscopy/Spectrometry Spintronics
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Beschreibung
Zusammenfassung:	Based on a unified theoretical treatment of the 1D Bogoliubov-de Genes equations, the superfluidity phenomenon of the Bose-Einstein condensates (BEC) loaded into trapped optical lattice is studied. Within the perturbation regime, an all-analytical framework is presented enabling a straightforward phenomenological mapping of the collective excitation and oscillation character of a trapped BEC where the available experimental configurations also fit.
ISSN:	1434-6060 1434-6079
DOI:	10.1140/epjd/e2012-30179-0