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arXiv quant-ph/9412008quant-ph
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离散时间量子力学的一般表述、对action的限制以及么正性与初值问题存在定理的关系

A general formulation of discrete-time quantum mechanics, restrictions on the action and the relation of unitarity to the existence theorem for initial-value problems

M. Khorrami

摘要:

基于普通量子力学中的Feynman方法,给出了离散时间量子力学的一般公式。它表明,在普通的量子力学(由于非交换性的运营商),目前的模糊性,不再存在于这里。然后研究了演化算子的么正性准则。结果表明,发展算子的幺正性限制了作用的形式,也暗示了经典初值问题解的存在性。

英文摘要:

A general formlulation for discrete-time quantum mechanics, based on Feynman's method in ordinary quantum mechanics, is presented. It is shown that the ambiguities present in ordinary quantum mechanics (due to noncommutativity of the operators), are no longer present here. Then the criteria for the unitarity of the evolution operator is examined. It is shown that the unitarity of the evolution operator puts restrictions on the form of the action, and also implies the existence of a solution for the classical initial-value problem.

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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