Dipole soliton-vortices.
On universal symmetry grounds, we analyze the existence of a new type of discrete-symmetry vortex solitons that can be considered as coherent states of dipole solitons carrying a nonzero topological charge. Remarkably, they can be also interpreted as excited angular Bloch states. The stability of new soliton states is elucidated numerically.
Kartashov
Yaroslav V
YV
ICFO-Institut de Ciències Fotòniques and Universitat Politècnica de Catalunya, Mediterranean Technology Park, 08860 Castelldefels (Barcelona), Spain. yaroslav.kartashov@icfo.es
Ferrando
Albert
A
García-March
Miguel-Angel
MA