Abstract

Dissipation of energy by a thin film of $^{4}\mathrm{He}$ on an oscillating planar substrate arises both from motion of free vortices and from polarization of bound pairs. Starting from a Langevin equation for vortex diffusion, and taking into account production of free vortices from bound pairs, we estimate this dissipation in various regimes of frequency, amplitude of vibration, and temperature.

Keywords

DissipationVortexPhysicsSuperfluidityAmplitudePlanarLangevin equationClassical mechanicsMechanicsCondensed matter physicsQuantum mechanics

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Publication Info

Year
1978
Type
article
Volume
40
Issue
12
Pages
783-786
Citations
298
Access
Closed

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Cite This

Vinay Ambegaokar, Bertrand I. Halperin, David R. Nelson et al. (1978). Dissipation in Two-Dimensional Superfluids. Physical Review Letters , 40 (12) , 783-786. https://doi.org/10.1103/physrevlett.40.783

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DOI
10.1103/physrevlett.40.783

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