Split instability of a vortex in an attractive Bose-Einstein condensate.
An attractive Bose-Einstein condensate with a vortex splits into two pieces via the quadrupole dynamical instability, which arises at a weaker strength of interaction than the monopole and the dipole instabilities. The split pieces subsequently unite to restore the original vortex or collapse.
Saito
Hiroki
H
Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551, Japan.
Ueda
Masahito
M