Orbital solitary waves in superfluid3He-A
- 14 March 1977
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 10 (5), L91-L97
- https://doi.org/10.1088/0022-3719/10/5/001
Abstract
A general expression for the entropy production in 3He-A is derived from the structure of the order parameter, thermodynamics, and the conservation laws. From this the nonlinear equation of motion of the orbital axis l is derived. A particular solitary wave solution of this equation is a stationary domain wall in which the direction of l precesses continuously, driven by a steady counterflow. Such a domain wall provides a plausible explanation of the persistent orbital motions discovered by Paulson, Krusius and Wheatley (Phys. Rev. Lett., vol.37, p.599 (1976)).Keywords
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