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arXiv quant-ph/9601012quant-ph
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关于宏观物体局部化的思考

Considerations on Localization of Macroscopic Bodies

B. Carazza, Diparimento di Fisica, Parma

摘要:

位置在理解基于量子原理的宏观物体的经典行为方面起着非常特殊的作用。这使我们能够在现实模型的背景下研究大型凝聚体的局部状态。根据一个孤立的宏观物体通常由低能量本征态的线性叠加描述的论点,已经发现这种类型的局域态对应于质心的几乎最小的不确定性状态。也给出了一个指示的质心位置分布的组成粒子的数量的依赖性。这篇论文不是作为一个有趣的问题的答案所发挥的作用的位置基础,但希望能提供一些贡献的多粒子系统的量子建模。

英文摘要:

Position holds a very special role in understanding the classical behaviour of macroscopic bodies on the basis of quantum principles. This lead us to examine the localised states of a large condensed object in the context of a realistic model. Following the argument that an isolated macroscopic body is usually described by a linear superposition of low-lying energy eigenstates, it has been found that localised states of this type correspond to a nearly minimum-uncertainty state for the center of mass. An indication is also given of the dependence of the center of mass position spread on the number of constituent particles. This paper is not offered as an answer to the intriguing question of the preferred role played by the position basis, but will hopefully provide some contribution to the quantum modelling of multi-particle systems.

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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