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arXiv · 2605.22135

Gyromagnetic Quantum Friction in Rayleigh Vorticity Baths

Mamoru Matsuo·Ryotaro Sano·Ai Yamakage·Hiroshi Funaki·Tatsuhiko N. Ikeda
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Abstract

We identify an intrinsic zero-temperature relaxation channel for near-surface spins gyromagnetically coupled to Rayleigh-wave vorticity. This surface-mode contribution requires no thermal phonons, unlike Raman relaxation, and is fixed by Rayleigh vorticity rather than material-specific $g$-factor modulation. The Rayleigh-vorticity bath is super-Ohmic and evanescent with depth, producing field and depth scalings of spin relaxation. These scalings establish shallow spin sensors and hybrid surface-acoustic-wave spin interfaces as detectors of Rayleigh-wave acoustic quantum friction in solids.

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Mamoru Matsuo, Ryotaro Sano, Ai Yamakage, Hiroshi Funaki, Tatsuhiko N. Ikeda. 2026-05-21. Gyromagnetic Quantum Friction in Rayleigh Vorticity Baths. https://arxiv.org/abs/2605.22135

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