Magnetic collective excitations in the B phase of superfluid He-3 |
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Authors: | Katsuhiko Nagai |
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Affiliation: | (1) Department of Physics, Faculty of Literature and Science, Yamaguchi University, Yamaguchi, Japan |
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Abstract: | The dynamical susceptibility of the B phase of superfluid He-3 in the presence of dipolar coupling is calculated in the collisionless regime. Two poles of the susceptibility that correspond to the spin wave and the mode with energy gap (2/5)1/2 2 are found. The result agrees with that of Tewordt and Einzel qualitatively and contradicts the recent work by Maki. The residue of the high-frequency mode becomes remarkable near the transition temperature. The dispersion relations of these modes atT=0 K and near the transition temperature are given in the most general form. |
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