Vortex Lattice Transitions in Cyclic Spinor Condensates
- Department of Physics, California Institute of Technology, MC 114-36, Pasadena, California 91125 (United States)
- Department of Physics, University of California, Berkeley, California 94720 (United States)
We study the energetics of vortices and vortex lattices produced by rotation in the cyclic phase of F=2 spinor condensates. In addition to the familiar triangular lattice predicted by Tkachenko for {sup 4}He, many more complex lattices appear in this system as a result of the spin degree of freedom. In particular, we predict a magnetic-field-driven transition from a triangular lattice to a honeycomb lattice. Other transitions and lattice geometries are driven at constant field by changes in the temperature-dependent ratio of charge and spin stiffnesses, including a transition through an aperiodic vortex structure. Finally, we compute the renormalization of the ratio of the spin and charge stiffnesses from thermal fluctuations using a nonlinear sigma model analysis.
- OSTI ID:
- 21134034
- Journal Information:
- Physical Review Letters, Vol. 100, Issue 24; Other Information: DOI: 10.1103/PhysRevLett.100.240405; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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