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

被引：3

作者：

Trallero-Giner, C. ^{[1
,2
]}

Lopez-Richard, V. ^{[2
]}

Nunez-Fernandez, Y. ^{[1
]}

Oliva, M. ^{[1
]}

Marques, G. E. ^{[2
]}

Chung, M. C. ^{[3
]}

机构：

[1] Univ Havana, Fac Phys, Havana 10400, Cuba

[2] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Paulo, Brazil

[3] Natl Ctr Theoret Sci, Div Phys, Hsinchu 30013, Taiwan

来源：

EUROPEAN PHYSICAL JOURNAL D | 2012年 / 66卷 / 07期

基金：

巴西圣保罗研究基金会;

关键词：

OPTICAL LATTICES; TUNNEL ARRAYS; DYNAMICS; ATOMS; GAS; VORTEX; LIGHT;

D O I：

10.1140/epjd/e2012-30179-0

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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.

引用

页数：5

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