PROGRESS OF THEORETICAL PHYSICS 107(4) 689-702 2002年4月 [査読有り]
In the Bose-Einstein condensation of a dilute alkaline atomic gas trapped in a magnetic potential, one has to deal with a strongly space- (and time-) dependent order parameter, which violates the phase symmetry. In this case, certain relations are...
PROGRESS OF THEORETICAL PHYSICS 107(4) 679-688 2002年4月 [査読有り]
In Bose-Einstein condensation of dilute alkaline atomic gases, a magnetic trapped potential forces particle-excitation levels to have a discrete spectrum. This indicates that there must arise a discrete zero-mode associated with the phase symmetry...
PROGRESS OF THEORETICAL PHYSICS 105(4) 573-590 2001年4月 [査読有り]
In recent experiments of Bose-Einstein condensation of a magnetically trapped dilute alkaline atomic gas, the nonequilibrium process of thermalization into the condensed state has been observed in a reasonably long time scale. This presents a new ...