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Anisotropic and long-range vortex interactions in two-dimensional dipolar Bose gases

arXiv
Authors: B. C. Mulkerin, R. M. W. van Bijnen, D. H. J. O'Dell, A. M. Martin, N. G. Parker

Year

2013

Paper ID

32261

Status

Preprint

Abstract Read

~2 min

Abstract Words

97

Citations

N/A

Abstract

We perform a theoretical study into how dipole-dipole interactions modify the properties of superfluid vortices within the context of a two-dimensional atomic Bose gas of co-oriented dipoles. The reduced density at a vortex acts like a giant anti-dipole, changing the density profile and generating an effective dipolar potential centred at the vortex core whose most slowly decaying terms go as 1/ρ2 and ln(ρ)/ρ3. These effects modify the vortex-vortex interaction which, in particular, becomes anisotropic for dipoles polarized in the plane. Striking modifications to vortex-vortex dynamics are demonstrated, i.e. anisotropic co-rotation dynamics and the suppression of vortex annihilation.

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  • We perform a theoretical study into how dipole-dipole interactions modify the properties of superfluid vortices within the context of a two-dimensional atomic Bose gas of...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1310.3640 [2] arXiv https://arxiv.org/abs/1310.3640 [3] Publisher https://arxiv.org/abs/1310.3640

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