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arXiv math-ph/0101026math-phmath.MP
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相干态路径积分中的定态相位

Stationary Phase in Coherent State Path Integrals

Chris Ray, Giulio Ruffini

摘要:

在将定态相位近似应用于相干态路径积分时,出现了一个困难,即没有经典路径满足路径积分的边界条件。其他人通过重新评估行动来解决这个问题。在这项工作中,它表明,它是没有必要重新评估的行动,因为固定相近似是适用的,只要路径,其中进行的扩展,满足相关的拉格朗日方程的运动。为了应用固定相近似,该路径不必满足边界条件。

英文摘要:

In applying the stationary phase approximation to coherent state path integrals a difficulty occurs; there are no classical paths that satisfy the boundary conditions of the path integral. Others have gotten around this problem by reevaluating the action. In this work it is shown that it is not necessary to reevaluate the action because the stationary phase approximation is applicable so long as the path, about which the expansion is performed, satisfies the associated Lagrange's equations of motion. It is not necessary for this path to satisfy the boundary conditions in order to apply the stationary phase approximation.

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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