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arXiv 1003.0674hep-thastro-ph.COcond-mat.othergr-qchep-ph
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费米子的Aharonov-Bohm辐射

Aharonov-Bohm Radiation of Fermions

Yi-Zen Chu, Harsh Mathur, Tanmay Vachaspati

摘要:

我们分析了带电费米子的Aharonov-Bohm辐射,从振荡的弦和宇宙弦。我们发现,辐射的角模式的功能,显着不同的玻色子。例如,最低谐波的费米子辐射近似各向同性地分布在振荡的螺线管周围,而对于玻色子,辐射是偶极的。我们还研究了发射的费米子-反费米子对的自旋极化。从宇宙弦的扭结和尖点的费米辐射线性依赖于紫外截止,这表明在能量尺度可比的弦能量尺度强发射。

英文摘要:

We analyze Aharonov-Bohm radiation of charged fermions from oscillating solenoids and cosmic strings. We find that the angular pattern of the radiation has features that differ significantly from that for bosons. For example, fermionic radiation in the lowest harmonic is approximately isotropically distributed around an oscillating solenoid, whereas for bosons the radiation is dipolar. We also investigate the spin polarization of the emitted fermion-antifermion pair. Fermionic radiation from kinks and cusps on cosmic strings is shown to depend linearly on the ultraviolet cut-off, suggesting strong emission at an energy scale comparable to the string energy scale.

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