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Circular solitons do not exist in photorefractive media

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Abstract

The shape of two-dimensional solitary beams propagating in photorefractive media with an externally applied field is studied. The analytical results indicate that, for both focusing and defocusing nonlinearities, radially symmetric self-channeled beams do not exist. Some recent experiments are interpreted in light of the present results.

© 1998 Optical Society of America

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Equations (13)

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