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arXiv 1609.06285quant-phcond-mat.mes-hallmath-phmath.MPnlin.SI
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多状态Landau-Zener理论中对散射振幅的约束

Constraints on scattering amplitudes in multistate Landau-Zener theory

N. A. Sinitsyn, J. Lin, V. Y. Chernyak

摘要:

我们推导出一组约束条件,我们称之为层次约束(HC),散射振幅的任意多状态的Landau-Zener模型(MLZM)。额外对称性的存在可以将这些约束转化为转移概率矩阵元素之间的非平凡关系。这一观察结果可以用来推导某些MLZM的完整解,或者对于无法完全求解的模型,可以减少转移概率矩阵中独立元素的数量。

英文摘要:

We derive a set of constraints, which we will call hierarchy constraints (HCs), on scattering amplitudes of an arbitrary multistate Landau-Zener model (MLZM). The presence of additional symmetries can transform such constraints into nontrivial relations between elements of the transition probability matrix. This observation can be used to derive complete solutions of some MLZMs or, for models that cannot be solved completely, to reduce the number of independent elements of the transition probability matrix.

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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