On the Extra Phase Accompanying Berry's Phase in Terms of Coherent State Path Integral
On the Extra Phase Accompanying Berry's Phase in Terms of Coherent State Path Integral
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相干状态路径积分中伴随贝里相位的额外相位
DOI：
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
T. Fukui
中科院分区：
文献类型：
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作者：
T. Fukui
在耦合通道方程的WKB近似中，Yabana和Horiuchi指出，半经典量子化条件应该用Berry相位和另一个额外相位来修正。最近，利特尔约翰和弗林以一种相当优雅的方式重新推导了它们。本文主要研究这个额外相位，并在一个简单的模型下，利用广义相干态表象中的路径积分方法导出了它。结果表明，它表现为围绕经典轨道的量子涨落
In the WKB approximation for coupled channel equations, it has been pointed out by Yabana and Horiuchi that the semi-classical quantization condition should be modified by Berry's phase and another extra phase. Recently Littlejohn and Flynn have rederived them in a quite elegant way. We concentrate on this extra phase in this paper, and derive it for a simple model by means of the path integral method in the generalized coherent state representation. It is shown that it appears as a quantum fluctuation around classical orbits