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arXiv 0907.3943hep-thmath-phmath.MP
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相对论和非相对论量子力学中的多重经典极限

Multiple classical limits in relativistic and nonrelativistic quantum mechanics

N. Yokomizo, J. C. A. Barata

摘要:

证明了玻色对称全同粒子二次量子化理论中描述相互作用粒子的经典极限的存在性。这个极限存在除了先前建立的经典极限与经典场的行为,表明极限$\hbar \to 0$的理论是不唯一的。一个类似的结果对自由质量标量场也是有效的:证明了存在两个不同的经典极限,分别描述一个质点系或一个经典场。为了表示感兴趣的运动学性质的本地运营商的引入被证明是打破一些局部化条件下的置换对称性,允许研究单个粒子的属性。

英文摘要:

The existence of a classical limit describing interacting particles in a second-quantized theory of identical particles with bosonic symmetry is proved. This limit exists in addition to a previously established classical limit with a classical field behavior, showing that the limit $\hbar \to 0$ of the theory is not unique. An analogous result is valid for a free massive scalar field: two distinct classical limits are proved to exist, describing a system of particles or a classical field. The introduction of local operators in order to represent kinematical properties of interest is shown to break the permutation symmetry under some localizability conditions, allowing the study of individual particle properties.

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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