Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/23637
Título: | Stable dark solitons in PT-symmetric dual-core waveguides |
Autor(es): | Bludov, Yuliy V. Konotop, Vladimir V. Malomed, B. A. |
Palavras-chave: | Dark soliton PT-symmetry |
Data: | 17-Jan-2013 |
Editora: | American Physical Society |
Revista: | Physical Review A |
Resumo(s): | We construct dark solitons in the recently introduced model of the nonlinear dual-core coupler with the mutually balanced gain and loss applied to the two cores,which is a realization of parity-time symmetry in nonlinear optics. The main issue is stability of the dark solitons. The modulational stability of the continuous-wave background, which supports the dark solitons, is studied analytically, and the full stability is investigated in a numerical form via computation of eigenvalues for modes of small perturbations. Stability regions are thus identified in the parameter space of the system and verified in direct simulations. Collisions between stable dark solitons are briefly considered too. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/23637 |
DOI: | 10.1103/PhysRevA.87.013816 |
ISSN: | 1050-2947 1094-1622 1538-4446 |
Versão da editora: | http://link.aps.org/doi/10.1103/PhysRevA.87.013816 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CDF - CEP - Artigos/Papers (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
PT_dark_proof.pdf | 1,57 MB | Adobe PDF | Ver/Abrir |