title: Twisted vortex state.
abstract: We study a twisted vortex bundle where quantized vortices form helices circling around the axis of the bundle in a "force-free" configuration. Such a state is created by injecting vortices into a rotating vortex-free superfluid. Using continuum theory we determine the structure and the relaxation of the twisted state. This is confirmed by numerical calculations. We also present experimental evidence of the twisted vortex state in superfluid 3He-B.
authors.affiliation: Low Temperature Laboratory, Helsinki University of Technology, P.O. Box 2200, 02015 HUT, Finland.
authors.forename: V B
authors.initials: VB
authors.lastname: Eltsov
authors.forename: A P
authors.initials: AP
authors.lastname: Finne
authors.forename: R
authors.initials: R
authors.lastname: Hänninen
authors.forename: J
authors.initials: J
authors.lastname: Kopu
authors.forename: M
authors.initials: M
authors.lastname: Krusius
authors.forename: M
authors.initials: M
authors.lastname: Tsubota
authors.forename: E V
authors.initials: EV
authors.lastname: Thuneberg