Comment on ''Symmetry and structure of quantized vortices in superfluid /sup 3/He-B''
Recent theoretical attempts to explain the observed vortex-core phase transition in superfluid /sup 3/He-B yield conflicting results. Variational calculations by Fetter and Theodrakis, based on realistic strong-coupling parameters, yield a phase transition in the Ginzburg-Landau region that is in qualitative agreement with the phase diagram. Numerically precise calculations by Salomaa and Volivil (SV), based on the Brinkman-Serene-Anderson (BSA) parameters, do not yield a phase transition between axially symmetric vortices. The ambiguity of these results is in part due to the large differences between the ..beta.. parameters, which are inputs to the vortex free-energy functional. We comment on the relative merits of the ..beta.. parameters based on recent improvements in the quasiparticle scattering amplitude and the BSA parameters used by SV.
- Research Organization:
- Joseph Henry Laboratories of Physics, Princeton University, Princeton, New Jersey 08544
- OSTI ID:
- 5145407
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Vol. 32:7, Issue 7
- Country of Publication:
- United States
- Language:
- English
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