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Chin. Phys. B, 2016, Vol. 25(4): 040501    DOI: 10.1088/1674-1056/25/4/040501
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Dynamics of spinor Bose-Einstein condensate subject to dissipation

Man-Man Pang(庞曼曼), Ya-Jiang Hao(郝亚江)
Department of Physics, University of Science and Technology Beijing, Beijing 100083, China
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      Published:  05 April 2016
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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