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arXiv 0711.3544quant-ph
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确定非相对论量子力学问题Feynman算符的另一种方法

Alternative Method for Determining the Feynman Propagator of a Non-Relativistic Quantum Mechanical Problem

Marcos Moshinsky, Emerson Sadurni, Adolfo del Campo

摘要:

费曼路径积分法给出了确定量子力学问题传播子的一种直接方法。格林函数是相对于传播子的时间变量的傅里叶变换,可以稍后导出。在我们的方法中,通过Laplace变换,一个直接的方法来获得的能量相关的格林函数,传播子可以得到一个逆Laplace变换。该方法通过简单的一维例子和时间无关的潜力,虽然它可以推广到更复杂的传播子的推导说明。

英文摘要:

A direct procedure for determining the propagator associated with a quantum mechanical problem was given by the Path Integration Procedure of Feynman. The Green function, which is the Fourier Transform with respect to the time variable of the propagator, can be derived later. In our approach, with the help of a Laplace transform, a direct way to get the energy dependent Green function is presented, and the propagator can be obtained later with an inverse Laplace transform. The method is illustrated through simple one dimensional examples and for time independent potentials, though it can be generalized to the derivation of more complicated propagators.

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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