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arXiv · 1909.07387

Superradiant Searches for Dark Photons in Two Stage Atomic Transitions

Amit Bhoonah·Joseph Bramante·Ningqiang Song
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Abstract

We study a new mechanism to discover dark photon fields, by resonantly triggering two photon transitions in cold gas preparations. Using coherently prepared cold parahydrogen, coupling sensitivity for sub-meV mass dark photon fields can be advanced by orders of magnitude, with a modified light-shining-through-wall setup. We calculate the effect of a background dark photon field on the dipole moment and corresponding transition rate of cold parahydrogen pumped into its first vibrational excited state by counter-propagating laser beams. The nonlinear amplification of two photon emission triggered by dark photons in a cold parahydrogen sample is numerically simulated to obtain the expected dark photon coupling sensitivity.

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Amit Bhoonah, Joseph Bramante, Ningqiang Song. 2020-03-19. Superradiant Searches for Dark Photons in Two Stage Atomic Transitions. https://doi.org/10.1103/physrevd.101.055040

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