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VOLUME 84 | ISSUE 6 | PAGE 349
On the problem of catastrophic relaxation in superfluid 3He-B
Yu. M. Bunkov, V. S. L'vov+*, G. E. Volovik^{*\triangle}
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
^{\triangle}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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