Makarov Slizneva, ValeriyVelarde, Manuel G.Guoxiang, Huang2023-06-202023-06-202001-071050-294710.1103/PhysRevA.64.013617https://hdl.handle.net/20.500.14352/57667The evolution and collision of dark solitary waves (solitons) appearing in cigar-shaped Bose-Einstein condensates with repulsive atom-atom interaction are here considered using a Boussinesq-Korteweg-de Vries description. We provide theoretical predictions and computer experiment evidence about their phase shifts or change of trajectories, in the space-time plot, corresponding upon collisions. Details are also given about a suggested experiment that could assess their genuine solitonic natureengjournal articlehttp://pra.aps.org/pdf/PRA/v64/i1/e013617http://pra.aps.org/open access535Bose-Einstein condensationOptical solitonsQuantum opticsDark solitonsHead-on collisionsBose-Einstein condensatesDark solitary wavesRepulsive atom-atom interactionBoussinesq-Korteweg-de Vries descriptionComputer experimentPhase shiftsSpace-time plotÓptica (Física)2209.19 Óptica Física