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arXiv 0711.4445quant-phcond-mat.stat-mech
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直接耦合双模的高频驱动场中的双模玻色-爱因斯坦凝聚体

Two-mode Bose-Einstein condensate in a high-frequency driving field that directly couples the two modes

Qi Zhang, Peter Hanggi, Jiangbin Gong

备注：
5 pages, 3 figures, revised version, to appear in Phys. Rev. A
发表信息：
Phys. Rev. A 77, 053607 (2008)
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摘要：

一个由高频调制场耦合的双模玻色-爱因斯坦凝聚体显示出丰富的特征。一个有效的固定哈密顿方法揭示了出现额外的简并本征态以及新的拓扑结构的频谱。可能的应用，如抑制非线性朗道-齐纳隧道，进行了讨论。在绝热过程中还发现了一个有趣的现象，我们称之为与分界线交叉有关的“确定性破缺俘获”。

英文摘要：

A two-mode Bose-Einstein condensate coupled by a high-frequency modulation field is found to display rich features. An effective stationary Hamiltonian approach reveals the emergence of additional degenerate eigenstates as well as new topological structures of the spectrum. Possible applications, such as the suppression of nonlinear Landau-Zener tunneling, are discussed. An interesting phenomenon, which we call "deterministic symmetry-breaking trapping" associated with separatrix crossing, is also found in an adiabatic process.

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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