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线性位势网格中的曲线交叉:拟一般性近似

Curve crossing in linear potential grids: the quasidegeneracy approximation

V. A. Yurovsky, A. Ben-Reuven

摘要:

拟生成近似[V.A. Yurovsky,A. Ben-Schloven,P. S. Julienne和Y. B. Band,J. Phys. B { \bf 32},1845(1999)]在此用于评估涉及两组平行势的线性势网格中的曲线交叉问题的过渡幅度。近似描述的现象,如违反直觉的过渡和饱和(不完全的人口转移),不能预测的假设独立的交叉。此外,由于量子干涉的一种新的振荡(不同于著名的Stückelberg振荡)被披露,其性质进行了讨论。这种近似方法在许多物理领域都有应用,在这些领域中,往往会出现多态曲线相交问题。

英文摘要:

The quasidegeneracy approximation [V. A. Yurovsky, A. Ben-Reuven, P. S. Julienne, and Y. B. Band, J. Phys. B {\bf 32}, 1845 (1999)] is used here to evaluate transition amplitudes for the problem of curve crossing in linear potential grids involving two sets of parallel potentials. The approximation describes phenomena, such as counterintuitive transitions and saturation (incomplete population transfer), not predictable by the assumption of independent crossings. Also, a new kind of oscillations due to quantum interference (different from the well-known Stückelberg oscillations) is disclosed, and its nature discussed. The approximation can find applications in many fields of physics, where multistate curve crossing problems occur.

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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