1203.2533 (Babette Döbrich et al.)

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

Babette Döbrich, Holger Gies, Norman Neitz, Felix Karbstein

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.

View original: http://arxiv.org/abs/1203.2533