How to create Alice string (half-quantum vortex) in a vector
  Bose-Einstein condensate

A. Achucarro; A. C. Davis; A. S. Schwarz; G. E. Volovik; G. E. Volovik; G. E. Volovik; J. E. Williams; J. March-Russel; J. R. Kirtley; M. Hindmarsh; M. M. Salomaa; M. R. Matthews; M. V. Khazan; N. D. Mermin; T. Isoshima; T. L. Ho; U. Leonhardt; V. B. Eltsov; V. Geshkenbein

research

How to create Alice string (half-quantum vortex) in a vector Bose-Einstein condensate

Authors: A. Achucarro
A. C. Davis
A. S. Schwarz
G. E. Volovik
G. E. Volovik
G. E. Volovik
J. E. Williams
J. March-Russel
J. R. Kirtley
M. Hindmarsh
M. M. Salomaa
M. R. Matthews
M. V. Khazan
N. D. Mermin
T. Isoshima
T. L. Ho
U. Leonhardt
V. B. Eltsov
V. Geshkenbein
Publication date: 1 January 2000
Publisher: 'Pleiades Publishing Ltd'
Doi

Abstract

We suggest a procedure how to prepare the vortex with N=1/2 winding number -- the counterpart of the Alice string -- in a Bose--Einstein condensate with hyperfine spin F=1. Other possible vortices in Bose-condensates are also discussed.Comment: RevTex file, 3 pages, no figures, extended version submitted to JETP Letter