Giant vortex phase transition in rapidly rotating trapped Bose-Einstein condensates Michele Correggi, Florian Pinsker, Nicolas Rougerie and Jakob Yngvason Eur. Phys. J. Special Topics, 217 (2013) 183-188 Published online: 11 March 2013 DOI: 10.1140/epjst/e2013-01767-5