Dark Lump Excitations in Bose-Einstein Condensates

Chin. Phys. Lett.

2002, Vol. 19

Issue (1): 17-19 DOI:

Original Articles

Dark Lump Excitations in Bose-Einstein Condensates

HUANG Guo-Xiang;ZHU Shan-Hua

Key Laboratory for Optical and Magnetic Resonance Spectroscopy and Department of Physics, East China Normal University, Shanghai 200062

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HUANG Guo-Xiang, ZHU Shan-Hua 2002 Chin. Phys. Lett. 19 17-19

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Abstract We investigated the dynamics of two-dimensional matter-wave pulses in a Bose-Einstein condensate with disk-shaped traps. For the case of repulsive atom-atom interactions, a Kadomtsev-Petviashvili equation with positive dispersion is derived using the method of multiple scales. The results show that it is possible to excite dark lump-like two-dimensional nonlinear excitations in the Bose-Einstein condensate.

Keywords: 03.75.Fi 03.65.Ge 42.65.Tg

Published: 01 January 2002

PACS:	03.75.Fi
	03.65.Ge	(Solutions of wave equations: bound states)
	42.65.Tg	(Optical solitons; nonlinear guided waves)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2002/V19/I1/017

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