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Topological states in partially-PT-symmetric azimuthal potentials

Autor
Kartashov, Y.V.; Konotop, V.; Torner, L.
Tipus d'activitat
Article en revista
Revista
Physical review letters
Data de publicació
2015-11-04
Volum
115
Número
19
DOI
https://doi.org/10.1103/PhysRevLett.115.193902 Obrir en finestra nova
Repositori
http://hdl.handle.net/2117/82161 Obrir en finestra nova
URL
http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.115.193902 Obrir en finestra nova
Resum
We introduce partially-parity-time (pPT)-symmetric azimuthal potentials composed from individual PT-symmetric cells located on a ring, where two azimuthal directions are nonequivalent in a sense that in such potential excitations carrying topological dislocations exhibit different dynamics for different directions of energy circulation in the initial field distribution. Such nonconservative ratchetlike structures support rich families of stable vortex solitons in cubic nonlinear media, whose pro...
Citació
Kartashov, Y.V., Konotop, V., Torner, L. Topological states in partially-PT-symmetric azimuthal potentials. "Physical review letters", 04 Novembre 2015, vol. 115, núm. 19.
Grup de recerca
FOTONICA - Grup de Recerca de Fotònica

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