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arXiv quant-ph/9906100quant-ph
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SU(2)基于任意基准矢量和几何相位的相干态路径积分

SU(2) coherent state path integrals based on arbitrary fiducial vectors and geometric phases

Masao Matsumoto

摘要:

我们发展了基于任意基准矢量的自旋(SU(2))相干态路径积分公式。路径积分表达式中的合力作用量广泛地依赖于向量,它与常规路径积分表达式的区别在于它具有附加项的广义形式。作为物理应用,我们还研究了与相干态路径积分相关的几何相位,发现这些项在实验中可能出现的新效应。我们看到,形式主义给出了一个明确的洞察几何相位。

英文摘要:

We develop the formulation of the spin(SU(2)) coherent state path integrals based on arbitrary fiducial vectors. The resultant action in the path integral expression extensively depends on the vector; It differs from the conventional one in that it has a generalized form having some additional terms. We also study, as physical applications, the geometric phases associated with the coherent state path integrals to find that new effects of the terms may appear in experiments. We see that the formalism gives a clear insight into geometric phases.

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