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arXiv 0711.2644hep-th
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各向异性谐振子、非对易朗道问题和奇异Newton-Hooke对称性

Anisotropic harmonic oscillator, non-commutative Landau problem and exotic Newton-Hooke symmetry

Pedro D. Alvarez, Joaquim Gomis, Kiyoshi Kamimura, Mikhail S. Plyushchay

摘要:

本文将具有显式旋转对称性的平面各向异性谐振子作为非对易坐标系下的粒子模型进行研究。它包括奇异的牛顿-胡克粒子和非交换朗道问题作为特殊的,各向同性和最大各向异性,情况。该系统是由相同的(2+1)维奇异牛顿-胡克对称性在各向同性的情况下,并开发三个不同的阶段取决于两个中心荷的值。奇异Newton-Hooke粒子和非对易Landau问题的特殊情况被证明具有额外的so(3)或so(2,1)Lie对称性,这反映了它们特有的谱性质.

英文摘要:

We investigate the planar anisotropic harmonic oscillator with explicit rotational symmetry as a particle model with non-commutative coordinates. It includes the exotic Newton-Hooke particle and the non-commutative Landau problem as special, isotropic and maximally anisotropic, cases. The system is described by the same (2+1)-dimensional exotic Newton-Hooke symmetry as in the isotropic case, and develops three different phases depending on the values of the two central charges. The special cases of the exotic Newton-Hooke particle and non-commutative Landau problem are shown to be characterized by additional, so(3) or so(2,1) Lie symmetry, which reflects their peculiar spectral 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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