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二阶量子路径的相干控制
高放,王耀雄,操德文,双丰*
作者单位E-mail
高放 中国科学院合肥智能机械研究所合肥230027  
王耀雄 中国科学院合肥智能机械研究所合肥230027中国科学技术大学自动化系合肥230027  
操德文 中国科学院合肥智能机械研究所合肥230027中国科学技术大学自动化系合肥230027  
双丰* 中国科学院合肥智能机械研究所合肥230027中国科学技术大学自动化系合肥230027 shuangfeng@ustc.edu.cn 
摘要:
研究了有N个中间能级连接初态和目标态的情况下量子路径的控制策略.以N=3的量子体系为例,详细阐述了针对弱的宽频场的4N分块控制方案,其中分块的边界频率依赖于量子体系的共振频率.此策略利用了路径幅度中共振和非共振项的相干效应,可通过只调节2N个相位变量实现.
关键词:  相干控制,二阶,量子路径
DOI:10.1063/1674-0068/28/cjcp1506124
分类号:
基金项目:
Coherent Control of Multiple 2nd-Order Quantum Pathways (cited:1)
Fang Gao,Yao-xiong Wang,De-wen Cao,Feng Shuan*
Abstract:
The manipulation of two 2nd-order quantum pathways has been successfully demonstrated experimentally in atomic Rubidium. This work would explore the coherent control of path-ways in the quantum system with N intermediate states connecting the initial and target states. A 4N-block scheme is proposed to control the N 2nd-order pathways which are driven by a weak broadband pulse. The model with N=3 is given as an example to demonstrate our strategy. In this scheme, boundaries of the spectral blocks are functions of the resonant frequencies, and the resonant and non-resonant contributions interfere mutually to achieve the quantum pathway control e ectively. The simple strategy may provide a practical choice for pathway manipulation experiments since there are only 2N phase variables to adjust.
Key words:  Coherent control, Multiple 2nd-order, Quantum pathway