On the problem of catastrophic relaxation in superfluid 3He-B
Yu. M. Bunkov, V. S. L'vov+*, G. E. Volovik
Centre de Recherches sur les Très Basses Températures, CNRS, BP166, 38042 Grenoble, France + Department of Chemical Physics, The Weizmann Institute of Science, 76100 Rehovot, Israel *Low Temperature Laboratory, Helsinki University of Technology, P.O.Box 2200, FIN-02015, HUT, Finland Landau Institute for Theoretical Physics RAS, 117334 Moscow, Russia
PACS: 67.57.Lm, 76.50.+g
Abstract
In this Letter we discussed the parametric
instability of texture of homogeneous (in time) spin precession,
explaining how spatial inhomogeneity of the texture may change
the threshold of the instability in comparison with idealized
spatial homogeneous case, considered in our JETP Letter
83, 530 (2006). This discussion is inspired by
critical comment of I.A. Fomin (JETP Lett., this issue) related to
the above questions. In addition we considered here results of
direct numerical solution of the full Leggett-Takagi equation
of motion for magnetization in 3He-B and experimental data for magnetic
field dependence of the catastrophic relaxation, that provide
solid support of the theory of this phenomenon, presented in our
2006 JETP Letter.
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