Creation of Coherent Superposition States in Multilevel Systems
Creation of Coherent Superposition States in Multilevel Systems作者机构：Department of Physics Sichuan University Chengdu 610064 China
出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)
年 卷 期：2007年第48卷第5X期
页 面：908-912页
核心收录：
主 题：v coherent superposition state degenerate dark state
摘 要：A powerful approach to generate multilevel superposition state in A-type manifold of levels is proposed. In the analysis, we introduce a group of rotations to transform the coupled system to a simpler form, which involves one coupled and several decoupled, dark states in the ground state manifold. Then an arbitrary superposition state of initial and final states can be created. In particular, when the Rabi frequencies of the Stokes pulses have equal magnitudes, a superposition state （equal population of the （n - 2） superposition states） will be generated. A numerical simulation of coherence generation is given. It is shown that a small transient population in metastable state decreases as the intensity of Stokes pulses increases. Experimental implementation in Neon atom is given.
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