Collective modes of a quasi-two-dimensional Bose condensate in large gas parameter regime

被引：0

作者：

Mishra, S. R. ^{[1
]}

Ram, S. P. ^{[1
]}

Banerjee, Arup ^{[1
]}

机构：

[1] Raj Ramanna Ctr Adv Technol, Laser Phys Applicat Div, Indore 452013, India

来源：

PRAMANA-JOURNAL OF PHYSICS | 2007年 / 68卷 / 06期

关键词：

Bose-Einstein condensation; collective modes; scattering length; TONKS-GIRARDEAU GAS; EINSTEIN CONDENSATION; GROUND-STATE; TRAPPED GASES; HARD SPHERES; EXCITATIONS; SYSTEM; APPROXIMATION; ATOMS;

D O I：

10.1007/s12043-007-0091-8

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have theoretically studied the collective modes of a quasi-two-dimensional (Q2D) Bose condensate in the large gas parameter regime by using a formalism which treats the interaction energy beyond the mean-field approximation. The results show that incorporation of this higher order term leads to significant modifications in the mode frequencies.

引用

页码：913 / 924

页数：12

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