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Upper threshold for stability of multipole-mode solitons in nonlocal nonlinear media
Zhiyong Xu1, Yaroslav V Kartashov, Lluis Torner
1ICFO-Institut de Ciencies Fotoniques and Universitat Politecnica de Catalunya, Barcelona, Spain. xu.zhiyong@icfo.es
Abstract:
We address the stability of multipole-mode solitons in nonlocal Kerr-type nonlinear media. Such solitons comprise several out-of-phase peaks packed together by the forces acting between them. We discover that dipole-, triple-, and quadrupole-mode solitons can be made stable, whereas all higher-order soliton bound states are unstable.
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