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Enhanced collective vibrations in granular materials.

Shihori Koyama1, Norihiro Oyama2, Hideyuki Mizuno1

  • 1Graduate School of Arts and Sciences, The University of Tokyo, Tokyo 153-8902, Japan. koyama-shihori146@g.ecc.u-tokyo.ac.jp.

Soft Matter
|April 23, 2025
PubMed
Summary

Granular materials exhibit unusual vibrational dynamics due to contact dissipation. Low-frequency modes are strongly excited, violating energy equipartition and showing long-range velocity fields.

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