Quantization of the hydrodynamic modes in superfluidwith a free surface
- 1 July 1975
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 12 (1) , 163-168
- https://doi.org/10.1103/physrevb.12.163
Abstract
Quantization of the hydrodynamic modes in superfluid with a free surface is carried out. A complete and orthonormal set of eigenfunctions for both ripplons and surface-reflected phonons is constructed. Applications of the formalism to the calculation of the thermal energy density near the surface, the temperature-dependent part of the surface tension, and the rate at which power is absorbed by the surface from an incident phonon beam are given.
Keywords
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