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arXiv quant-ph/0507094quant-ph
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有限维量子系统的Wigner分布:代数方法

Wigner distributions for finite dimensional quantum systems: An algebraic approach

S. Chaturvedi, E. Ercolessi, G. Marmo, G. Morandi, N. Mukunda, R. Simon

摘要:

我们讨论的问题有关的“动量”,“动量空间”,“相空间”和“维格纳分布”的定义,有限维量子系统。对于这样的系统,传统的概念“动量”建立的连续的情况下提供帮助不大,我们提出了一个物理上合理的和数学上有形的定义,并使用它的目的是建立维格纳分布在一个纯粹的代数方式。发现这里采用的观点仅限于奇维系统。数学的原因,迫使这种情况进行了详细的研究。

英文摘要:

We discuss questions pertaining to the definition of `momentum', `momentum space', `phase space', and `Wigner distributions'; for finite dimensional quantum systems. For such systems, where traditional concepts of `momenta' established for continuum situations offer little help, we propose a physically reasonable and mathematically tangible definition and use it for the purpose of setting up Wigner distributions in a purely algebraic manner. It is found that the point of view adopted here is limited to odd dimensional systems only. The mathematical reasons which force this situation are examined in detail.

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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