Weakly bound solitons and two-soliton molecules in dipolar Bose-Einstein condensates

Autor:	Baizakov, B. B., Al-Marzoug, S. M., Khawaja, U. Al, Bahlouli, H.
Rok vydání:	2018
Předmět:	Condensed Matter - Quantum Gases
Druh dokumentu:	Working Paper
DOI:	10.1088/1361-6455/ab0e1b
Popis:	Analytic expressions have been derived for the interaction potential between dipolar bright solitons and the binding energy of a two-soliton molecule. The properties of these localized structures are explored with a focus on their behavior in the weakly bound regime, with a small binding energy. Using the variational approach a coupled system of ordinary differential equations for the parameters of a soliton molecule is obtained for the description of their evolution. Predictions of the model are compared with numerical simulations of the governing nonlocal Gross-Pitaevskii equation and good qualitative agreement between them is demonstrated. Comment: 19 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1812.09563 Zobrazit plný text záznamu View this record from Arxiv