Solitons in the Bose Condensate

Qian Tian

Through analyzing the current situation of optical soliton in the bose Einstein condensation,the research of optical soliton in the system elaborated the bose Einstein condensation method and model,and the current in the research of other scholars in the field of optical soliton in the bose Einstein condensation results must be analyzed,in order to further studies in this field provides a method and guidance.

Radha Balakrishnan, Indubala I. Satija

M.R. Zhumaev, Mirzo Zokirovich Sharipov, N. N. Mirzhonova

The effect of the fluctuation interaction of atoms forming a condensate on solitons of the Bose-Einstein condensation is considered. A short derivation of the Gross-Pitaevsky equation is given. The averaged Lagrangian of solitons of the Bose-Einstein condensation is determined. The obtained results give an opportunity to investigate the solitons dynamics under the action of various perturbations.

Alexandre Heuchamps

Kai Bongs, Sven Burger, D. Hellweg +7 more

Experimental and numerical studies of the velocity field of dark solitons in Bose–Einstein condensates are presented. The formation process after phase imprinting as well as the propagation of the emerging soliton are investigated using spatially resolved Bragg spectroscopy of soliton states in Bose–Einstein condensates of 87 Rb. A comparison of experimental data to results from numerical simulations of the Gross–Pitaevskii equation clearly identifies the flux underlying a dark soliton propagating in a Bose–Einstein condensate. The results allow further optimization of the phase imprinting method for creating collective excitations of Bose–Einstein condensates.

David L. Feder