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Bose-Einstein condensates in 2D with time-periodic scattering length

被引：1
作者：
Abdullaev, FK
Caputo, JG
Kraenkel, RA
Malomed, BA
机构：
[1] Univ Estadual Paulista, Inst Fis Teor, BR-01405900 Sao Paulo, Brazil
[2] Univ Cergy Pontoise, Lab Phys Theor & Modelisat, F-95011 Cergy Pontoise, France
来源：
JOURNAL OF LOW TEMPERATURE PHYSICS | 2004年 / 134卷 / 1-2期
关键词：
D O I：
10.1023/B:JOLT.0000012626.82246.df
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We discuss two-dimensional Bose-Einstein Condensates (BEC) under time-periodic variation of the scattering length. In particular we argue that for high-frequency variation there exist stable self-confined condensates without an external trap, when the do component of the scattering length is negative. Our results are based on a variational approximation, on direct averaging of the Gross-Pitaevskii equation and on numerical simulations.
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收藏
页码：671 / 676
页数：6
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