Bright Solitons in Bose-Einstein Condensates: Theory

俞慧友, 颜家壬, 谢琼涛

We investigate the stability of bright solitons in Bose-Einstein condensates by including a feeding term and a loss one in the Oross-Pitaevskii equation. Based on the direct approach of perturbation theory for the nonlinear Schroedinger equation, we give the explicit dependence of the height and other related quantities of bright solitons on the feeding and loss term. It is found that the three-body recombination loss plays a crucial role in stabilizing bright solitons.

Josselin C. Garnier, F. Kh. Abdullaev

Luca Salasnich

Radha Balakrishnan, Indubala I. Satija

Yu Hui-You, Yan Jia-Ren, Qiongtao Xie

We investigate the stability of bright solitons in Bose–Einstein condensates by including a feeding term and a loss one in the Gross–Pitaevskii equation. Based on the direct approach of perturbation theory for the nonlinear Schrödinger equation, we give the explicit dependence of the height and other related quantities of bright solitons on the feeding and loss term. It is found that the three-body recombination loss plays a crucial role in stabilizing bright solitons.

Alexandre Heuchamps