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

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

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.

Keywords: Bose—Fermi mixture dynamical instability dark state

Received: 24 November 2010
Revised: 08 April 2011
Accepted manuscript online:

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

Fund: 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).

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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 2011 Chin. Phys. B 20 080309

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

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