Colloquium
Friday, April 14, 2000
4:00 PM
Physics Building, Room 204
Note special time.
Note special room.
Friday, April 14, 2000
4:00 PM
Physics Building, Room 204
Note special time.
Note special room.
"Superfluidity in low dimensions: beyond the mean-field theory"
Eugene Kolomeisky , University of Virginia
[Host: Joseph Poon]
ABSTRACT:
The Gross-Pitaevskii approximation is a long-wavelength theory widely used
to describe a variety of properties of dilute Bose condensates, in
particular trapped alkali gases. In this talk I will show that for
short-ranged repulsive interactions this theory fails in one and two spatial
dimensions, and appropriate low-dimensional modifications will be proposed.
The new theory has a universal character, and some of its implications such
as density profiles in confining potentials, superfluidity, solitons, and
self-similar solutions will be discussed.
To add a speaker, send an email to phys-speakers@Virginia.EDU. Please include the seminar type (e.g. Colloquia), date, name of the speaker, title of talk, and an abstract (if available).