Formation of solitons in atomic Bose-Einstein condensates by dark-state adiabatic passage

Details Formation of solitons in atomic Bose-Einstein condensates by dark-state adiabatic passage Formation of solitons in atomic Bose-Einstein condensates by dark-state adiabatic passage

2007-10-09

arxiv.org/abs/0710.1702v1

Lithuanian. J. Phys. 47 (3), 351-360 (2007)

Physics

Condensed Matter

Soft Condensed Matter

10 figures

Scientific paper

10.3952/lithjphys.47318

We propose a new method of creating solitons in elongated Bose-Einstein Condensates (BECs) by sweeping three laser beams through the BEC. If one of the beams is in the first order (TEM10) Hermite-Gaussian mode, its amplitude has a transversal phase slip which can be transferred to the atoms creating a soliton. Using this method it is possible to circumvent the restriction set by the diffraction limit inherent to conventional methods such as phase imprinting. The method allows one to create multicomponent (vector) solitons of the dark-bright form as well as the dark-dark combination. In addition it is possible to create in a controllable way two or more dark solitons with very small velocity and close to each other for studying their collisional properties.

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