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Topological states in partially-PT-symmetric azimuthal potentials

Author
Kartashov, Y.V.; Konotop, V.; Torner, L.
Type of activity
Journal article
Journal
Physical review letters
Date of publication
2015-11-04
Volume
115
Number
19
DOI
https://doi.org/10.1103/PhysRevLett.115.193902 Open in new window
Repository
http://hdl.handle.net/2117/82161 Open in new window
URL
http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.115.193902 Open in new window
Abstract
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...
Citation
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.
Group of research
FOTONICA - Photonics Research Group

Participants