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arXiv · 2311.13926

Charge transport in chiral solids as a possible tool in search of dark matter signals

Marek Rogatko·Karol I. Wysokinski
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Abstract

As the existing techniques to directly detect dark matter particles in laboratory experiments continue to produce negative signals, the research community considers novel approaches including those relying on condensed matter systems with non-trivial quantum properties. For example, finding signatures of dark matter in transport characteristics of solids would be an important step on the road to detect this illusive component of the mass of our Universe. As a first step in this direction we have recently derived the modified kinetic equation taking into account two coupled $U(1)$-gauge fields, one being the standard Maxwell electromagnetic field and other corresponding to the dark sector. The resulting Boltzmann kinetic equation is modified by the Berry curvature which couples to both visible and dark sector gauge fields. The linear and nonlinear longitudinal and/or Hall currents in topological matter may signal the existence of dark particle induced electromagnetic fields. The usage of appropriately designed resonant cavity to enhance the electric field may help to reach the goal. The conservative estimates show that the technique should have the sensitivity of the order of $10^{-9}$ or better and may help to partially fill the gap between XENON1T and haloscope experiments.

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Marek Rogatko, Karol I. Wysokinski. 2023-11-23. Charge transport in chiral solids as a possible tool in search of dark matter signals. https://doi.org/10.1103/physrevd.108.104062

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