On phase ordering behind the propagating front of a second-order transition
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In a real system the heating is nonuniform, and a second-order phase transition to a broken-symmetry phase occurs by propagation of a temperature front. Two parameters, the cooling rate τ Q and the transition front velocity ν T determine the nucleation of topological defects. Depending on the relation of these parameters, two regimes are found: in the regime of fast propagation defects are created according to the Zurek scenario for the homogeneous case, while in the slow-propagation regime vortex formation is suppressed.
PACS numbers11.27.+d 67.40.Vs 67.57.Fg 98.80.Cq
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- 3.A. Vilenkin and E. P. S. Shellard, Cosmic Strings and Other Topological Defects, Cambridge University Press, Cambridge, 1993.Google Scholar
- 5.D. Vollhardt and P. Wölfle, The Superflujid Phases of 3 He, Taylor & Francis, London, 1990.Google Scholar
- 8.G. Volovik, Exotic Properties of Superfluid 3 He, World Scientific, Singapore, 1992; M. Salomaa and G. Volovik, Rev. Mod. Phys. 59, 533 (1987).Google Scholar
- 11.Ü. Parts, V. M. H. Ruutu, J. H. Koivuniemi et al., Measurements on quantized vortex lines with singular or continuous core structure in rotating 3He-A, Report TKK-F-A736, 1995.Google Scholar