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arXiv quant-ph/0612068quant-phcond-mat.other
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一般量子系统中的量子力学(IV):格林算符和路径积分

Quantum mechanics in general quantum systems (IV): Green operator and path integral

An Min Wang

摘要:

我们首先以尽可能简洁的形式重写时间演化算子的微扰展开[安民王,quant-ph/0611216]。然后导出了含时完备格林算符的微扰展开式,并证明了它就是Dyson方程的傅里叶变换。在此基础上,得到了Feynman路径积分公式中完全跃迁振幅的微扰展开式,并给出了完全跃迁振幅与未微扰跃迁振幅之间的积分关系式.这些结果的进一步应用可以预期,并将在不久的将来进行调查。

英文摘要:

We first rewrite the perturbation expansion of the time evolution operator [An Min Wang, quant-ph/0611216] in a form as concise as possible. Then we derive out the perturbation expansion of the time-dependent complete Green operator and prove that it is just the Fourier transformation of the Dyson equation. Moreover, we obtain the perturbation expansion of the complete transition amplitude in the Feynman path integral formulism, and give an integral expression that relates the complete transition amplitude with the unperturbed transition amplitude. Further applications of these results can be expected and will be investigated in the near future.

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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