Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2008-07-01
Phys. Rev. B78, 144510 (2008)
Physics
Condensed Matter
Statistical Mechanics
4 pages, 5 figs. Submitted to Physical Review. Online suppl. material available; Ref. 6. V2: Fig. 1 re-sent, URL in Ref. 6 cor
Scientific paper
10.1103/PhysRevB.78.144510
We study the evolution of rotational response of a hydrodynamic model of a two-component superfluid with a non-dissipative drag interaction, as the system undergoes a transition into a paired phase at finite temperature. The transition manifests itself in a change of (i) vortex lattice symmetry, and (ii) nature of vortex state. Instead of a vortex lattice, the system forms a highly disordered tangle which constantly undergoes merger and reconnecting processes involving different types of vortices, with a "hidden" breakdown of translational symmetry.
Babaev Egor
Dahl Eskil K.
Sudbo Asle
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