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Stability of spiralling solitary waves in Hamiltonian systems
Dmitry V Skryabin1, John M McSloy, William J Firth
1Department of Physics, University of Bath, Bath BA2 7AY, United Kingdom.
Abstract:
We present a rigorous criterion for stability of spiralling solitary structures in Hamiltonian systems incorporating the angular momentum integral and demonstrate its applicability to the spiralling of two mutually incoherent optical beams propagating in a photorefractive material.