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We propose a new low-threshold direct-detection concept for dark matter andfor coherent nuclear scattering of solar neutrinos, based on the dissociationof atoms and subsequent creation of color center type defects within a lattice.The novelty in our approach lies in its ability to detect single defects in amacroscopic bulk of material. This class of experiments features ultra-lowenergy thresholds which allows for the probing of dark matter as light as$\mathcal{O}(10)$ MeV through nuclear scattering. Another feature of defectcreation in crystals is directional information, which presents as aspectacular signal and a handle on background reduction in the form of dailymodulation of the interaction rate. We discuss the envisioned setup anddetection technique, as well as background reduction. We further calculate theexpected rates for dark matter and solar neutrinos in two example crystals forwhich available data exists, demonstrating the prospective sensitivity of suchexperiments.

Direct Detection of Light Dark Matter and Solar Neutrinos via Color Center Production in Crystals