paper

Magnetically amplified tunneling of the 3rd kind as a probe of minicharged particles

arXiv:1203.2533 · doi:10.1103/PhysRevLett.109.131802

Abstract

We show that magnetic fields significantly enhance a new tunneling mechanism in quantum-field theories with photons coupling to fermionic minicharged particles. 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 minicharged particles with masses in and below the meV regime.

5 pages, 2 figures; some clarifications added, matches version published in PRL

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Magnetically amplified tunneling of the 3rd kind as a probe of minicharged particles · wovepaper