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Searches for light dark matter using condensed matter systems.

Yonatan Kahn1,2, Tongyan Lin3

  • 1Department of Physics, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States of America.

Reports on Progress in Physics. Physical Society (Great Britain)
|March 21, 2022
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Summary
This summary is machine-generated.

Scientists are exploring lighter dark matter (DM) candidates using condensed matter systems for direct detection. New approaches are needed to observe sub-GeV DM scattering, focusing on collective excitations in target materials.

Keywords:
dark matterdynamic structure factorlow-threshold detectors

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Area of Science:

  • Particle physics
  • Condensed matter physics
  • Astrophysics

Background:

  • Dark matter (DM) detection searches for TeV-scale candidates have yielded null results.
  • Focus is shifting towards lighter sub-GeV dark matter candidates.
  • Direct detection of light DM requires novel approaches beyond traditional nuclear interaction searches.

Purpose of the Study:

  • To provide a comprehensive review of direct detection methods for keV-GeV dark matter using condensed matter systems.
  • To bridge the gap between particle physics and condensed matter physics for dark matter detection.
  • To outline the theoretical and experimental landscape for sub-GeV dark matter detection.

Main Methods:

  • Review of dark matter models and condensed matter basics.
  • Theoretical treatment of dark matter-nucleon and dark matter-electron interactions.
  • Survey of experimental detector technologies for light dark matter detection.

Main Results:

  • Condensed matter physics, particularly collective excitations like quasiparticles and phonons, is crucial for detecting light DM.
  • Interdisciplinary approaches combining particle and condensed matter physics are essential.
  • Recent advancements in detector technology are enabling new detection strategies.

Conclusions:

  • Sub-GeV dark matter detection presents a promising frontier in particle physics.
  • Condensed matter systems offer unique opportunities for discovering light dark matter particles.
  • The field anticipates significant progress in detector technology and theoretical understanding over the next decade.