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arXiv quant-ph/9509019quant-phhep-th
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导体中的非对角长程序、限制规范变换和Aharonov-Bohm效应

Off-Diagonal Long-Range Order, Restricted Gauge Transformations, and Aharonov-Bohm Effect in Conductors

Murray Peshkin

摘要:

描述一个导体周围的外部磁场的哈密顿量包含一个非零的向量势的体积可访问的电子和原子核的导体。这个矢势不能用规范变换去掉。然而,一个宏观的正常导体可以不经历Aharonov-Bohm效应。这一点可以通过仅假设正常导体缺乏非对角长程序(ODLRO)来证明。然后,通过将希尔伯特空间限制为缺乏ODLRO的密度矩阵,可以引入限制规范变换,该变换消除了导体与矢量势的相互作用。

英文摘要:

The Hamiltonian describing a conductor surrounding an external magnetic field contains a nonvanishing vector potential in the volume accessible to the electrons and nuclei of which the conductor is made. That vector potential cannot be removed by a gauge transformation. Nevertheless, a macroscopic normal conductor can experience no Aharonov-Bohm effect. That is proved by assuming only that a normal conductor lacks off-diagonal long-range order (ODLRO). Then by restricting the Hilbert space to density matrices which lack ODLRO, it is possible to introduce a restricted gauge transformation that removes the interaction of the conductor with the vector potential.

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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