Dynamical instability of the dark state in the conversion of Bose–Fermi mixtures into stable molecules

doi:10.1088/1674-1056/20/8/080309

中国物理B ›› 2011, Vol. 20 ›› Issue (8): 80309-080309.doi: 10.1088/1674-1056/20/8/080309

Dynamical instability of the dark state in the conversion of Bose–Fermi mixtures into stable molecules

孟少英¹, 吴炜¹, 陈希浩¹, 张静¹, 傅立斌²

(1)Department of Physics, Liaoning University, Shenyang 110036, China; (2)Science and Technology Computation Physics Laboratory, Institute of Applied Physics and Computational Mathematics, P. O. Box 8009, Beijing 100088, China; Centre for Applied Physics and Technology, Peking University, Beijing 100871, China

收稿日期:2010-11-24 修回日期:2011-04-08 出版日期:2011-08-15 发布日期:2011-08-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grants Nos. 10725521, 11005055, and 11075020), the National Fundamental Research Programme of China (Grant No. 2011CB921503), the Natural Science Foundation of Liaoning Province, China (Grant No. 20072054), the Science and Technology Plan Projects of Liaoning Provincial Department of Education, China (Grant No. 2009S045), and the Shenyang Planning Project of Science and Technology Bureau, China (Grant No. 1091187-1-00).

Dynamical instability of the dark state in the conversion of Bose–Fermi mixtures into stable molecules

Meng Shao-Ying(孟少英)^a), Wu Wei(吴炜)^a), Chen Xi-Hao(陈希浩)^a), Zhang Jing(张静)^a), and 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 Applied Physics and Computational Mathematics, P. O. Box 8009, Beijing 100088, China; ^c Centre for Applied Physics and Technology, Peking University, Beijing 100871, China

Received:2010-11-24 Revised:2011-04-08 Online:2011-08-15 Published:2011-08-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grants Nos. 10725521, 11005055, and 11075020), the National Fundamental Research Programme of China (Grant No. 2011CB921503), the Natural Science Foundation of Liaoning Province, China (Grant No. 20072054), the Science and Technology Plan Projects of Liaoning Provincial Department of Education, China (Grant No. 2009S045), and the Shenyang Planning Project of Science and Technology Bureau, China (Grant No. 1091187-1-00).

摘要/Abstract

摘要： In this paper, we investigate the dynamical instability of the dark state in the conversion of Bose—Fermi mixtures into stable molecules through a stimulated Raman adiabatic passage aided by Feshbach resonance. We analytically obtain the regions where the dynamical instability appears and find that such instability in the Bose—Fermi mixture system is caused not only by bosonic interparticle interactions but also by Pauli blocking terms, which is different from the scenario of a pure bosonic system where instability is induced by nonlinear interparticle collisions. Taking a ⁴⁰K—⁸⁷Rb mixture as an example, we give the unstable regions numerically.

关键词: Bose—Fermi mixture, dynamical instability, dark state

Abstract: In this paper, we investigate the dynamical instability of the dark state in the conversion of Bose—Fermi mixtures into stable molecules through a stimulated Raman adiabatic passage aided by Feshbach resonance. We analytically obtain the regions where the dynamical instability appears and find that such instability in the Bose—Fermi mixture system is caused not only by bosonic interparticle interactions but also by Pauli blocking terms, which is different from the scenario of a pure bosonic system where instability is induced by nonlinear interparticle collisions. Taking a ⁴⁰K—⁸⁷Rb mixture as an example, we give the unstable regions numerically.

Key words: Bose—Fermi mixture, dynamical instability, dark state

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, 吴炜, 陈希浩, 张静, 傅立斌. Dynamical instability of the dark state in the conversion of Bose–Fermi mixtures into stable molecules[J]. 中国物理B, 2011, 20(8): 80309-080309.

Meng Shao-Ying(孟少英), Wu Wei(吴炜), Chen Xi-Hao(陈希浩), Zhang Jing(张静), and Fu Li-Bin(傅立斌). Dynamical instability of the dark state in the conversion of Bose–Fermi mixtures into stable molecules[J]. Chin. Phys. B, 2011, 20(8): 80309-080309.

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Dynamical instability of the dark state in the conversion of Bose–Fermi mixtures into stable molecules

Dynamical instability of the dark state in the conversion of Bose–Fermi mixtures into stable molecules

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