Vortices and Angular Momentum in Bose-Einstein-Condensed Cold Dark Matter Halos

Details Vortices and Angular Momentum in Bose-Einstein-Condensed Cold Dark Matter Halos Vortices and Angular Momentum in Bose-Einstein-Condensed Cold Dark Matter Halos

2009-12-15

arxiv.org/abs/0912.2897v2

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

5 pages, 1 figure; minor corrections; final version, to appear in 'New Horizons in Astronomy (Bash Symposium 2009)', Proceedin

Scientific paper

If cold dark matter elementary particles form a Bose-Einstein condensate, their superfluidity may distinguish them from other forms of cold dark matter, including creation of quantum vortices. We demonstrate here that such vortices are favoured in strongly-coupled condensates, while this is not the case for axions, which are generally presumed to form a Bose-Einstein condensate but are effectively non-interacting.

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