Looking back at superfluid helium
arXiv:cond-mat/0303561 · doi:10.1007/978-3-0348-7932-3_2
Abstract
A few years after the discovery of Bose Einstein condensation in several gases, it is interesting to look back at some properties of superfluid helium. After a short historical review, I comment shortly on boiling and evaporation, then on the role of rotons and vortices in the existence of a critical velocity in superfluid helium. I finally discuss the existence of a condensate in a liquid with strong interactions, and the pressure variation of its superfluid transition temperature.
Conference "Bose Einstein Condensation", Institut henri Poincare, Paris, 29 march 2003