Dark Matter Detection with Strongly Correlated Topological Materials: Flatband Effect
Abstract
Dirac materials have been proposed as a new class of electron-based detectors for light dark-matter (DM) scattering or absorption, with predicted sensitivities far exceeding superconductors and superfluid helium. The superiority of Dirac materials originates from a significantly reduced in-medium dielectric response winning over the suppression of DM scattering owing to the limited phase space at the point-like Fermi surface. Here we propose a new route to enhance significantly the DM detection efficiency via strongly correlated topological semimetals. Specifically, by considering a strongly correlated Weyl semimetal model system, we demonstrate that the strong correlation-induced flatband effects can amplify the coupling and detection sensitivity to light DM particles by expanding the scattering phase space, while maintaining a weak dielectric in-medium response.
Keywords
Cite
@article{arxiv.2305.19967,
title = {Dark Matter Detection with Strongly Correlated Topological Materials: Flatband Effect},
author = {Zhao Huang and Christopher Lane and Sarah E. Grefe and Snehasish Nandy and Benedikt Fauseweh and Silke Paschen and Qimiao Si and Jian-Xin Zhu},
journal= {arXiv preprint arXiv:2305.19967},
year = {2023}
}
Comments
5+ pages, 4 embedded figures, and supplemental material