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Nonlinear dissipative dynamics of a two-component atomic condensate coupling with a continuum |
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| Authors: | Zhong Hong-Hua Xie Qiong-Tao Xu Jun Hai Wen-Hua Li Chao-Hong |
| Affiliation: | a Department of Physics, Jishou University, Jishou 416000, China;b State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-Sen University, Guangzhou 510275, China;c Department of Physics and Key Laboratory of Low-Dimensional Quantum Structure and Quantum Control of Ministry of Education, Hunan Normal University, Changsha 410081, China |
| Abstract: | We investigate the nonlinear dissipative coherence bifurcation and population dynamics of a two-component atomic Bose–Einstein condensate coupling with a continuum. The coupling between the two-component condensates and the continuum brings effective dissipations to the two-component condensates. The steady states and the coherence bifurcation depend on both dissipation and the nonlinear interaction between condensed atoms. The coherence among condensed atoms may be even enhanced by the effective dissipations. The combination of dissipation and nonlinearity allows one to control the switching between different self-trapped states or the switching between a self-trapped state and a non-self-trapped state. |
| Keywords: | Bose– Einstein condensate nonlinear dynamics quantum tunneling open quantum system |
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