We investigate nonlinear Dicke quantum phase transition（QPT） induced by inter-atomic nonlinear interaction and its quantum witness in a cavity-Bose–Einstein-condensate（BEC） system. It is shown that inter-atomic n...We investigate nonlinear Dicke quantum phase transition（QPT） induced by inter-atomic nonlinear interaction and its quantum witness in a cavity-Bose–Einstein-condensate（BEC） system. It is shown that inter-atomic nonlinear interaction in a cavity BEC system can induce first-order Dicke QPT. It is found that this nonlinear Dicke QPT can happen in an arbitrary coupling regime of the cavity and atoms. It is demonstrated that the quantum speed limit time can witness the Dicke QPT through its sudden change at the critical point of the QPT.展开更多
Since the beginning of 2005, the central SOEs (state-owned enterprises) earnestly carried out and put into effect various strategies and policies as well as work plans of the Central Committee of the Party and the... Since the beginning of 2005, the central SOEs (state-owned enterprises) earnestly carried out and put into effect various strategies and policies as well as work plans of the Central Committee of the Party and the State Council.They kept forging ahead and carved out in an innovative spirit, and made great achievements worth celebrating in their various work.Both sales revenue and total profits of the central SOEs have been growing rapidly and synchronously, and the quality of the stateowned assets have been further improved and appeared a good momentum.……展开更多
基金Supported by the National Natural Science Foundation of China under Grant Nos 11775075 and 1143401
文摘We investigate nonlinear Dicke quantum phase transition（QPT） induced by inter-atomic nonlinear interaction and its quantum witness in a cavity-Bose–Einstein-condensate（BEC） system. It is shown that inter-atomic nonlinear interaction in a cavity BEC system can induce first-order Dicke QPT. It is found that this nonlinear Dicke QPT can happen in an arbitrary coupling regime of the cavity and atoms. It is demonstrated that the quantum speed limit time can witness the Dicke QPT through its sudden change at the critical point of the QPT.
文摘 Since the beginning of 2005, the central SOEs (state-owned enterprises) earnestly carried out and put into effect various strategies and policies as well as work plans of the Central Committee of the Party and the State Council.They kept forging ahead and carved out in an innovative spirit, and made great achievements worth celebrating in their various work.Both sales revenue and total profits of the central SOEs have been growing rapidly and synchronously, and the quality of the stateowned assets have been further improved and appeared a good momentum.……
