The stability of the symmetric two-spiral state against asymmetric perturbations is investigated. It is shown that the the bound states are always unstable against a spontaneous breaking of symmetry, which leads to the formation of states with one dominant spiral. The existence and the stability of lattices of topological defects are discussed.
All Science Journal Classification (ASJC) codes
- Statistical and Nonlinear Physics
- Statistics and Probability
- Condensed Matter Physics