Instability, adiabaticity, and controlling effects of external fields for the dark state in a homonuclear atom–tetramer conversion system

doi:10.1088/1674-1056/23/4/040306

中国物理B ›› 2014, Vol. 23 ›› Issue (4): 40306-040306.doi: 10.1088/1674-1056/23/4/040306

Instability, adiabaticity, and controlling effects of external fields for the dark state in a homonuclear atom–tetramer conversion system

孟少英^a, 陈希浩^a, 吴炜^a, 傅立斌^{b c}

a Department of Physics, Liaoning University, Shenyang 110036, China;
b Science and Technology Computation Physics Laboratory, Institute of AppliedPhysics and Computational Mathematics, Beijing 100088, China;
c Center for Applied Physics and Technology, Peking University, Beijing 100871, China

收稿日期:2013-04-17 修回日期:2013-08-28 出版日期:2014-04-15 发布日期:2014-04-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11005055, 11075020, and 11204117), the National Fundamental Research Programme of China (Grant No. 2011CB921503), the Ph. D. Programs Foundation of Liaoning Provincial Science and Technology Bureau (Grant No. 201103778), and the Higher School Excellent Researcher Award Program from the Educational Department of Liaoning Province of China (Grant No. LJQ2011005).

Instability, adiabaticity, and controlling effects of external fields for the dark state in a homonuclear atom–tetramer conversion system

Meng Shao-Ying (孟少英)^a, Chen Xi-Hao (陈希浩)^a, Wu Wei (吴炜)^a, Fu Li-Bin (傅立斌)^{b c}

a Department of Physics, Liaoning University, Shenyang 110036, China;
b Science and Technology Computation Physics Laboratory, Institute of AppliedPhysics and Computational Mathematics, Beijing 100088, China;
c Center for Applied Physics and Technology, Peking University, Beijing 100871, China

Received:2013-04-17 Revised:2013-08-28 Online:2014-04-15 Published:2014-04-15
Contact: Chen Xi-Hao, Fu Li-Bin E-mail:xi-haochen@163.com;lbfu@iapcm.ac.cn
About author:03.75.Mn; 03.75.Nt; 03.75.Kk
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11005055, 11075020, and 11204117), the National Fundamental Research Programme of China (Grant No. 2011CB921503), the Ph. D. Programs Foundation of Liaoning Provincial Science and Technology Bureau (Grant No. 201103778), and the Higher School Excellent Researcher Award Program from the Educational Department of Liaoning Province of China (Grant No. LJQ2011005).

摘要/Abstract

摘要： In the present paper, we investigate the instability, adiabaticity, and controlling effects of external fields for a dark state in a homonuclear atom-tetramer conversion that is implemented by a generalized stimulated Raman adiabatic passage. We analytically obtain the regions for the appearance of dynamical instability and study the adiabatic evolution by a newly defined adiabatic fidelity. Moreover, the effects of the external field parameters and the spontaneous emissions on the conversion efficiency are also investigated.

关键词: dynamical instability, adiabatic fidelity, dark state, atom-molecule conversion

Abstract: In the present paper, we investigate the instability, adiabaticity, and controlling effects of external fields for a dark state in a homonuclear atom-tetramer conversion that is implemented by a generalized stimulated Raman adiabatic passage. We analytically obtain the regions for the appearance of dynamical instability and study the adiabatic evolution by a newly defined adiabatic fidelity. Moreover, the effects of the external field parameters and the spontaneous emissions on the conversion efficiency are also investigated.

Key words: dynamical instability, adiabatic fidelity, dark state, atom-molecule conversion

中图分类号: (Multicomponent condensates; spinor condensates)

03.75.Mn

03.75.Nt (Other Bose-Einstein condensation phenomena) 03.75.Kk (Dynamic properties of condensates; collective and hydrodynamic excitations, superfluid flow)

孟少英, 陈希浩, 吴炜, 傅立斌. Instability, adiabaticity, and controlling effects of external fields for the dark state in a homonuclear atom–tetramer conversion system[J]. 中国物理B, 2014, 23(4): 40306-040306.

Meng Shao-Ying (孟少英), Chen Xi-Hao (陈希浩), Wu Wei (吴炜), Fu Li-Bin (傅立斌). Instability, adiabaticity, and controlling effects of external fields for the dark state in a homonuclear atom–tetramer conversion system[J]. Chin. Phys. B, 2014, 23(4): 40306-040306.

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Instability, adiabaticity, and controlling effects of external fields for the dark state in a homonuclear atom–tetramer conversion system

Instability, adiabaticity, and controlling effects of external fields for the dark state in a homonuclear atom–tetramer conversion system

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