The superfluidity of He-4 was eventually determined to be caused by this substance being dispersed in the liquid, and the one created by Wolfgang Ketterle had about a hundred times more atoms than the first one created.
Field-induced Neel ordering with magnons in antiferromagnets is an example of this. The wave function of this can be described by an equation that adds a term based on the scattering length and the Dirac delta function to the Schrodinger equation; that equation is named for Gross and Pitaevskii. The superfluidity of He-4 was eventually determined to be caused by this substance being dispersed in the liquid, and the one created by Wolfgang Ketterle had about a hundred times more atoms than the first one created. Eric Cornell and Carl Wieman won the 2001 Nobel Prize for the discovery of, for ten points, this state of matter, the namesake of an Indian and a German physicist.
Field-induced Neel ordering with magnons in antiferromagnets is an example of this.
{Bose}-{Einstein condensate} [accept {BEC}]