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Dark Matter Interactions in Condensed Matter Systems

Speaker: Yoni Kahn (University of Illinois at Urbana-Champaign)

Event Details

Is your dark matter detector a bag of free particles? If you're looking for GeV-TeV WIMPS, sure! If you're looking for sub-GeV dark matter, emphatically no! I will argue that condensed matter physics is mandatory for understanding light dark matter interactions with generic solid-state detectors, and give three examples of simple models which elucidate the features required to design a quantifiably optimal detector. In particular, a perverse and accidental hierarchy between the dark matter velocity and the electron Fermi velocity in conventional materials points the way toward molecular crystals and narrow-gap heavy-electron compounds as ideal detector materials.

Sep 29, 2021
4:00 pm – 5:00 pm (CDT)
Hosted By
Doojin Kim