2013/03/01 by M. Asad-uz-zaman, U. Al Khawaja
Computer Science · Physics and Astronomy · #Advanced Fiber Laser Technologies #Critical ionization velocity #Diode #Energy flow #Flow (mathematics) #Nonlinear Dynamics and Pattern Formation #Nonlinear Photonic Systems #Range (aeronautics) #Scattering #Soliton #nlin.PS
paper · pdf · doi:10.1209/0295-5075/101/50008
7 pages, 5 figures
arxiv created 2013/03/01 · openalex publication_date 2013/03/01 · arxiv updated 2015/06/15 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We study the flow of bright solitons through two asymmetric potential wells. The scattering of a soliton by certain type of single potential wells, e.g., Gaussian or Rosen-Morse, is distinguished by a critical velocity above which solitons can transmit almost completely and below which solitons can reflect nearly perfectly. For two such wells in series with certain parameter combinations, we find that there is an appreciable velocity range for which solitons can propagate in one direction only. Our study shows that this directional propagation or diode behavior is due to a combined effect of the sharp transition in the transport coefficients at the critical velocity and a slight reduction in the center-of-mass speed of the soliton while it travels across a potential well.