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arXiv 0709.0843quant-ph
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具有Aharonov-Bohm矢势和“旁观者”磁场的带电粒子的诱导分数零点正则Angular Momentum

Induced Fractional Zero-Point Canonical Angular Momentum on Charged Particles of Aharonov - Bohm Vector Potential and "Spectator" Magnetic Field

Jian-Zu Zhang

摘要:

利用改进的组合势实现了AB矢量势在带电粒子上诱导的分数零点正则角动量。研究了这类量子效应的新特点:在机械动能为零的极限下,在无AB磁场区,仅用AB矢势不能在量子力学水平上诱导带电粒子的分数零点正则角动量;但对于AB矢势和另一个“旁观者”磁场的情况,AB矢势感应分数零-点正则角动量在同一极限。“旁观者”对这种分数零点量没有贡献,但在量子力学水平上保证非平凡动力学在这个极限中生存下来方面起着至关重要的作用。这些结果对AB效应及相关领域的研究具有重要的理论和实验意义。

英文摘要:

The induced fractional zero-point canonical angular momentum on charged particles by the Aharonov - Bohm (AB) vector potential is realized via modified combined traps. It explores new features for this type of quantum effects: In a limit of vanishing mechanical kinetic energy the AB vector potential alone cannot induce a fractional zero-point canonical angular momentum on charged particles at the quantum mechanical level in the AB magnetic field-free region; But for the case of the AB vector potential with another one of a "spectator" magnetic field the AB vector potential induces a fractional zero-point canonical angular momentum in the same limit. The "spectator" one does not contribute to such a fractional zero-point quantity, but plays essential role in guaranteeing non-trivial dynamics survived in this limit at the quantum mechanical level. These results are significance in investigations of the AB effects and related fields for both theories and experiments.

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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