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arXiv · 0806.2012

Uniformly frustrated bosonic Josephson-junction arrays

Kenichi Kasamatsu
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Abstract

We derive a uniformly frustrated $XY$ model that describes two-dimensional Josephson-junction arrays consisting of rotating Bose-Einstein condensates trapped by both a harmonic trap and a corotating deep optical lattice. The harmonic trap makes the coupling constant of the model have a nonuniform parabolic dependance. We study the ground state through Monte Carlo simulations in a wide range of the frustration parameter $f$, revealing a rich variety of vortex patterns.

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BibTeXRIS

Kenichi Kasamatsu. 2008-06-12. Uniformly frustrated bosonic Josephson-junction arrays. https://doi.org/10.1103/physreva.79.021604

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