Knots in a spinor Bose-Einstein condensate

Phys Rev Lett. 2008 May 9;100(18):180403. doi: 10.1103/PhysRevLett.100.180403. Epub 2008 May 7.


We show that knots of spin textures can be created in the polar phase of a spin-1 Bose-Einstein condensate, and discuss experimental schemes for their generation and probe, together with their lifetime.