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James, A. J. A. and Lamacraft, A.
(2011).
DOI: https://doi.org/10.1103/PhysRevLett.106.140402
Abstract
Spin-1 condensates in the polar (antiferromagnetic) phase in two dimensions are shown to undergo a transition of the Ising type, in addition to the expected Kosterlitz-Thouless (KT) transition of half-vortices, due to the quadratic Zeeman effect. We establish the phase diagram in terms of temperature and the strength of the Zeeman effect using Monte Carlo simulations. When the Zeeman effect is sufficiently strong, the Ising and KT transitions meet. For very strong Zeeman field the remaining transition is of the familiar integer KT type.
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- Item ORO ID
- 60371
- Item Type
- Journal Item
- ISSN
- 1079-7114
- Academic Unit or School
-
Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM) - Copyright Holders
- © 2011 American Physical Society
- Depositing User
- Andrew James