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- W2061605221 abstract "We introduce a one-dimensional phenomenological model of a nonlocal medium featuring focusing cubic and defocusing quintic nonlocal optical nonlinearities. By means of numerical methods, we find families of solitons of two types, even-parity (fundamental) and dipole-mode (odd-parity) ones. Stability of the solitons is explored by means of computation of eigenvalues associated with modes of small perturbations, and tested in direct simulations. We find that the stability of the fundamental solitons strictly follows the Vakhitov-Kolokolov criterion, whereas the dipole solitons can be destabilized through a Hamiltonian-Hopf bifurcation. The solitons of both types may be stable in the nonlocal model with only quintic self-attractive nonlinearity, in contrast with the instability of all solitons in the local version of the quintic model." @default.
- W2061605221 created "2016-06-24" @default.
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- W2061605221 date "2006-12-29" @default.
- W2061605221 modified "2023-10-06" @default.
- W2061605221 title "Stable solitons of even and odd parities supported by competing nonlocal nonlinearities" @default.
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- W2061605221 doi "https://doi.org/10.1103/physreve.74.066614" @default.
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