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Vortex Lattice Transitions in Cyclic Spinor Condensates

Barnett, Ryan and Mukerjee, Subroto and Moore, Joel E. (2008) Vortex Lattice Transitions in Cyclic Spinor Condensates. Physical Review Letters, 100 (24). Art. No. 240405. ISSN 0031-9007. doi:10.1103/PhysRevLett.100.240405.

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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 4He, 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.

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Additional Information:©2008 The American Physical Society. (Received 2 November 2007; revised 25 March 2008; published 19 June 2008) The authors thank D.A. Huse, M. Lucianovic, O. Motrunich, D. Podolsky, G. Refael, D. Stamper-Kurn, M. Vengalattore, and A. Vishwanath for useful discussions. R.B. was supported by the Sherman Fairchild Foundation, S.M. by DOE/LBNL, and J.E.M. by NSF No. DMR-0238760.
Issue or Number:24
Record Number:CaltechAUTHORS:BARprl08
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:10953
Deposited By: Archive Administrator
Deposited On:20 Jun 2008
Last Modified:08 Nov 2021 21:12

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