Magnetically amplified tunneling of the third kind as a probe of minicharged particles.
Magnetically amplified tunneling of the third kind as a probe of minicharged particles.
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作为微型带电粒子样本的第三类磁放大隧道效应
DOI：
10.1103/physrevlett.109.131802
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发表时间：
2012
影响因子：
8.6
通讯作者：
F. Karbstein
中科院分区：
文献类型：
--
作者：
B. Döbrich;H. Gies;N. Neitz;F. Karbstein
我们表明，磁场通过光子与费米子微带电粒子（MCP）耦合，显着增强了量子场论中的新隧道机制。我们提出了一个专门的穿墙光照射类型的实验室实验，该实验可以探索与最佳模型无关的宇宙学界限相当甚至超越的参数范围。利用当今的技术，此类实验对质量处于或低于 meV 范围的 MCP 特别敏感，正如标准模型的新物理扩展所建议的那样。
We show that magnetic fields significantly enhance a new tunneling mechanism in quantum field theories with photons coupling to fermionic minicharged particles (MCPs). We propose a dedicated laboratory experiment of the light-shining-through-walls type that can explore a parameter regime comparable to and even beyond the best model-independent cosmological bounds. With present-day technology, such an experiment is particularly sensitive to MCPs with masses in and below the meV regime as suggested by new-physics extensions of the standard model.