title: Dark solitons in a one-dimensional condensate of hard core bosons.
abstract: A mapping theorem leading to exact many-body dynamics of impenetrable bosons in one dimension reveals dark and gray solitonlike structures in a toroidal trap which is phase imprinted. On long time scales revivals appear that are beyond the usual mean-field theory.
authors.affiliation: Institute of Theoretical Science, University of Oregon, Eugene, Oregon 97403, USA.
authors.forename: M D
authors.initials: MD
authors.lastname: Girardeau
authors.forename: E M
authors.initials: EM
authors.lastname: Wright