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The Imbalanced antiferromagnet in an optical lattice

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Publication date

2010-02

Authors

Koetsier, Arnaud
van Liere, F.
Stoof, H.T.C.ISNI 0000000116481361

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DOI

https://doi.org/10.1103/PhysRevA.81.023628

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Article

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Utrecht University Repository

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Abstract

We study the rich properties of the imbalanced antiferromagnet in an optical lattice. We present its phase diagram, discuss spin waves, and explore the emergence of topological excitations in two dimensions, known as merons, which are responsible for a Kosterlitz-Thouless transition that has never unambiguously been observed.

Keywords

QUANTUM HALL SYSTEMS, O(3) SIGMA-MODEL, MOTT INSULATOR, ATOMS, TRANSITION, SUPERFLUID, GAS

Citation

Koetsier, A, van Liere, F & Stoof, H T C 2010, 'The Imbalanced antiferromagnet in an optical lattice', Physical Review A - Atomic, Molecular, and Optical Physics, vol. 81, no. 2, 023628, pp. 023628/1-023628/4. https://doi.org/10.1103/PhysRevA.81.023628, https://doi.org/10.1103/PhysRevA.81.023628

URI

https://dspace.library.uu.nl/handle/1874/204063