2005/05/31 by Chaohong Lee, C Lee, Joachim Brand +1 · 8 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Nonlinear Photonic Systems #Strong Light-Matter Interactions #cond-mat.other #nlin.PS
paper · pdf · doi:10.1209/epl/i2005-10408-4
published as Europhys. Lett., 73, 321 (2006) · 7 pages, 3 figures, to be published in Europhys. Lett
arxiv created 2005/12/07 · openalex publication_date 2005/12/22 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
Matter-wave bright solitons are predicted to reflect from a purely attractive potential well although they are macroscopic objects with classical particle-like properties. The non-classical reflection occurs at small velocities and a pronounced switching to almost perfect transmission above a critical velocity is found, caused by nonlinear mean-field interactions. Full numerical results from the nonlinear Schrödinger equation are complimented by a two-mode variational calculation to explain the predicted effect, which can be used for velocity filtering of solitons. The experimental realization with laser-induced potentials or two-component Bose-Einstein condensates is suggested.