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arXiv 0812.0246cond-mat.othercond-mat.stat-mech
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四次势场中玻色-爱因斯坦凝聚体的静态和动态性质

Bose-Einstein condensate in a quartic potential: Static and Dynamic properties

G. K. Chaudhary, Amit K Chattopadhyay, R. Ramakumar

摘要:

在本文中,我们提出了一个理论研究的玻色-爱因斯坦凝聚体的相互作用玻色子在一个四次陷阱在一个,两个和三个维度。本文利用Gross-Pitaevskii方程的数值解,并在适当的条件下,采用Fermas-Fermi近似,研究了基态凝聚态密度分布、化学势、四次势中交叉项的影响、凝聚态各能量分量的时间演化以及凝聚态的宽度振荡。所得到的结果进行了比较与相应的结果在谐波约束的玻色凝聚。

英文摘要:

In this paper, we present a theoretical study of a Bose-Einstein condensate of interacting bosons in a quartic trap in one, two, and three dimensions. Using Thomas-Fermi approximation, suitably complemented by numerical solutions of the Gross-Pitaevskii equation, we study the ground sate condensate density profiles, the chemical potential, the effects of cross-terms in the quartic potential, temporal evolution of various energy components of the condensate, and width oscillations of the condensate. Results obtained are compared with corresponding results for a bose condensate in a harmonic confinement.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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