Exponential wave-packet spreading via self-interaction time modulation

doi:10.1103/PhysRevA.94.053631

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	Exponential wave-packet spreading via self-interaction time modulation
	Zhao, Wen-Lei ; Gong, Jiangbin ; Wang, Wen-Ge ; Casati, Giulio ; Liu, Jie ; Fu, Li-Bin
刊名	PHYSICAL REVIEW A
	2016
关键词	BOSE-EINSTEIN CONDENSATE DELTA-KICKED ROTOR FESHBACH RESONANCES GUIDES CHAOS
DOI	10.1103/PhysRevA.94.053631
英文摘要	The time-periodic modulation of the self-interaction of a Bose-Einstein condensate or a nonlinear optics system has been recognized as an exciting tool to explore interesting physics that was previously unavailable. This tool is exploited here to examine the exotic dynamics of a nonlinear system described by the Gross-Pitaevskii equation. We observe three remarkable and closely related dynamical phenomena, exponentially localized profile of wave functions in momentum space with localization length exponentially increasing in time, exponential wave-packet spreading, and exponential sensitivity to initial conditions. A hybrid quantum-classical theory is developed to partly explain these findings. Time-periodic self-interaction modulation is seen to be a robust method to achieve superfast spreading and induce genuine chaos even in the absence of any external potential.; National Basic Research Program of China (973 Program) [2013CBA01502, 2011CB921503, 2013CB834100]; National Natural Science Foundation of China [11447016]; Foundation of China Scholarship of Council [201508360124]; MIUR-PRIN; Singapore Ministry of Education Academic Research Fund Tier I (WBS) [R-144-000-353-112]; SCI(E); ARTICLE; phygj@nus.edu.sg; wgwang@ustc.edu.cn; lbfu@iapcm.ac.cn; 5; 94
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/458363]
专题	工学院
推荐引用方式 GB/T 7714	Zhao, Wen-Lei,Gong, Jiangbin,Wang, Wen-Ge,et al. Exponential wave-packet spreading via self-interaction time modulation[J]. PHYSICAL REVIEW A,2016.
APA	Zhao, Wen-Lei,Gong, Jiangbin,Wang, Wen-Ge,Casati, Giulio,Liu, Jie,&Fu, Li-Bin.(2016).Exponential wave-packet spreading via self-interaction time modulation.PHYSICAL REVIEW A.
MLA	Zhao, Wen-Lei,et al."Exponential wave-packet spreading via self-interaction time modulation".PHYSICAL REVIEW A (2016).