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Anisotropic and long-range vortex interactions in two-dimensional dipolar Bose gases.
Mulkerin, B C; van Bijnen, R M W; O'Dell, D H J; Martin, A M; Parker, N G.
Afiliação
  • Mulkerin BC; School of Physics, University of Melbourne, Victoria 3010, Australia.
Phys Rev Lett ; 111(17): 170402, 2013 Oct 25.
Article em En | MEDLINE | ID: mdl-24206463
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 antidipole, changing the density profile and generating an effective dipolar potential centred at the vortex core whose most slowly decaying terms go as 1/ρ(2) and ln(ρ)/ρ(3). 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 corotation dynamics and the suppression of vortex annihilation.
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Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2013 Tipo de documento: Article
Buscar no Google
Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2013 Tipo de documento: Article