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

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.

arXiv comment5 pages, 2 figures; some clarifications added, matches version published in PRL

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• Letter of Intent: Towards a Vacuum Birefringence Experiment at the Helmholtz International Beamline for Extreme Fields
• Can we see quantum gravity? Photons in the asymptotic-safety scenario
• Magnetically amplified light-shining-through-walls via virtual minicharged particles
• Hidden Sector Photon Coupling of Resonant Cavities
• A numerical evaluation of vacuum polarization tensor in constant external magnetic fields
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• Minicharged particles search by strong laser pulse-induced vacuum polarization effects
• Light dark matter candidates in intense laser pulses II: the relevance of the spin degrees of freedom
• Tunneling of the 3rd Kind: A Test of the Effective Non-locality of Quantum Field Theory
• Vacuum Magnetic Birefringence Experiment as a probe of Dark Sector
• Electric and magnetic axion quark nuggets, their stability and their detection
• Simulations of "Tunnelling of the 3rd Kind"