Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/46033
Título: | An escape of vector matter-wave soliton from a parabolic trap |
Autor(es): | Bludov, Yuliy V. García-Ñustes, Monica A. |
Palavras-chave: | Bose–Einstein condensate Soliton Optical lattice |
Data: | 12-Jun-2017 |
Editora: | IOP Publishing |
Revista: | Journal of Physics B: Atomic, Molecular and Optical Physics |
Resumo(s): | We show that a vector matter–wave soliton in a Bose–Einstein condensate (BEC) loaded into an optical lattice can escape from a trap formed by a parabolic potential, resembling a Hawking emission. The particle–antiparticle pair is emulated by a low-amplitude bright–bright soliton in a two-component BEC with effective masses of opposite signs. It is shown that the parabolic potential leads to a spatial separation of BEC components. One component with chemical potential in a semi-infinite gap exerts periodical oscillations, while the other BEC component, with negative effective mass, escapes from the trap. The mechanism of atom transfer from one BEC component to another by spatially periodic linear coupling term is also discussed. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/46033 |
DOI: | 10.1088/1361-6455/aa7432 |
ISSN: | 0953-4075 |
e-ISSN: | 1361-6455 |
Versão da editora: | http://iopscience.iop.org/article/10.1088/1361-6455/aa7432 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CDF - CEP - Artigos/Papers (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
haw_emis_JPB_proof.pdf | main text | 1,12 MB | Adobe PDF | Ver/Abrir |