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arXiv 1506.06341math-phmath.MPmath.RT
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非对易量子力学的Wigner函数:基于群表示的构造

Wigner Functions for Noncommutative Quantum Mechanics: a group representation based construction

S. Hasibul Hassan Chowdhury, S. Twareque Ali

摘要:

本文利用$\mathbb R^4$的交换群的三重中心扩张--$\g$群的幺正不可约表示,采用较早发展起来的一种技术,{ \it,}构造和分析了非对易量子力学的Wigner函数、它们的边际分布和星积.这些表示已详尽的研究在以前的文件。群$\g$与具有两个自由度的系统的非对易量子力学的运动学对称群相同。这里研究的维格纳函数反映了不同层次的非交换性--位置算子和动量算子都不交换,位置算子不交换,最后,标准量子力学的情况下,只服从正则交换关系。

英文摘要:

This paper is devoted to the construction and analysis of the Wigner functions for noncommutative quantum mechanics, their marginal distributions and star-products, following a technique developed earlier, {\it viz\/,} using the unitary irreducible representations of the group $\g$, which is the three fold central extension of the abelian group of $\mathbb R^4$. These representations have been exhaustively studied in earlier papers. The group $\g$ is identified with the kinematical symmetry group of noncommutative quantum mechanics of a system with two degrees of freedom. The Wigner functions studied here reflect different levels of non-commutativity -- both the operators of position and those of momentum not commuting, the position operators not commuting and finally, the case of standard quantum mechanics, obeying the canonical commutation relations only.

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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