Dynamics of spinor Bose-Einstein condensate subject to dissipation

doi:10.1088/1674-1056/25/4/040501

Abstract We investigate the internal dynamics of the spinor Bose-Einstein condensates subject to dissipation by solving the Lindblad master equation. It is shown that for the condensates without dissipation its dynamics always evolve along a specific orbital in the phase space of (n₀, θ) and display three kinds of dynamical properties including Josephson-like oscillation, self-trapping-like oscillation, and ‘running phase'. In contrast, the condensates subject to dissipation will not evolve along the specific dynamical orbital. If component-1 and component-(-1) dissipate at different rates, the magnetization m will not conserve and the system transits between different dynamical regions. The dynamical properties can be exhibited in the phase space of (n₀, θ, m).

Keywords: spinor Bose-Einstein condensates dissipation master equation

Received: 19 October 2015
Revised: 02 December 2015
Accepted manuscript online:

PACS:	05.30.Jp	(Boson systems)
	03.65.Yz	(Decoherence; open systems; quantum statistical methods)
	03.75.Mn	(Multicomponent condensates; spinor condensates)
	03.75.Kk	(Dynamic properties of condensates; collective and hydrodynamic excitations, superfluid flow)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11004007) and the Fundamental Research Funds for the Central Universities of China.

Corresponding Authors: Ya-Jiang Hao
E-mail: haoyj@ustb.edu.cn

Cite this article:

Man-Man Pang(庞曼曼), Ya-Jiang Hao(郝亚江) Dynamics of spinor Bose-Einstein condensate subject to dissipation 2016 Chin. Phys. B 25 040501

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