학술논문
Emission of Solitons From an Obstacle Moving in the Bose-Einstein Condensate
Document Type
article
Author
Source
Frontiers in Physics, Vol 9 (2021)
Subject
Language
English
ISSN
2296-424X
Abstract
Dark solitons dynamically generated from a potential moving in a one-dimensional Bose-Einstein condensate are displayed. Based on numerical simulations of the Gross-Pitaevskii equation, we find that the moving obstacle successively emits a series of solitons which propagate at constant speeds. The dependence of soliton emission on the system parameters is examined. The formation mechanism of solitons is interpreted as interference between a diffusing wavepacket and the condensate background, enhanced by the nonlinear interactions.PACS numbers: 03.75.Mn, 03.75.Lm, 05.30.Jp