Abstract
For crystalline ion pools trapped just beneath the surface of superfluid He-4, we present a new calculation of the phonon frequencies, and extend this calculation to motion normal to the ion plane. We calculate the damping due to the cubic anharmonicity associated with each in-plane normal mode. We find well defined transverse modes, but difficulties associated with the damping of long wavelength longitudinal modes. Simple arguments are presented to discuss these problems.
Original language | English |
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Pages (from-to) | 355-356 |
Number of pages | 2 |
Journal | Czechoslovak Journal of Physics |
Volume | 46 |
Issue number | S1 |
DOIs | |
Publication status | Published - 1 Jan 1996 |