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arXiv 0809.0165math-phmath.MPquant-ph
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从酉群到旗流形的约化动力学:相互作用矩阵Riccati方程

Reduced Dynamics from the Unitary Group to Some Flag Manifolds : Interacting Matrix Riccati Equations

Kazuyuki Fujii, Hiroshi Oike

摘要:

本文讨论了N能级系统中酉元的时间演化,并考虑了从酉群U(N)到第二类旗流形(用我们的术语)的约化动力学。然后,我们导出了一组相互作用的矩阵Riccati型微分方程,并提出了Riccati方程所满足的非线性叠加公式的一个重要问题。我们的结果是论文{ \bf Chaturvedi et al}(arXiv:0706.0964 [quant-ph])的自然推广。

英文摘要:

In this paper we treat the time evolution of unitary elements in the N level system and consider the reduced dynamics from the unitary group U(N) to flag manifolds of the second type (in our terminology). Then we derive a set of differential equations of matrix Riccati types interacting with one another and present an important problem on a nonlinear superposition formula that the Riccati equation satisfies. Our result is a natural generalization of the paper {\bf Chaturvedi et al} (arXiv : 0706.0964 [quant-ph]).

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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