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Physical Review A

Formation of N -body polymer molecules through generalized stimulated Raman adiabatic passage

Fu-Quan Dou, Libin Fu, Jie Liu

Published Apr 25, 2013• 13 citations
Publisher

Abstract

We investigate the creation of stable homonuclear and heteronuclear $N$-body polymer molecules from ultracold atoms via a generalized stimulated Raman adiabatic passage scheme. The atom-molecule dark-state solutions for the system are obtained and are found to satisfy universal algebraic equations. We discuss the linear instability and the adiabatic fidelity of the dark state. We also explore the effects of the interparticle interactions, the atomic number of the polymer, and external field parameters on the conversion process.

DOI
10.1103/physreva.87.043631

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The generation of ultracold molecules has been a hot topic in cold atom-molecule physics.It is difficult to obtain ultracold molecules with laser cooling as in the atomic system,because there are more degrees of freedom in molecules,and the level structure is denser and more complicated. For the time being,the ultracold molecules are generally generated from the ultracold atoms coupled by the external fields.The stimulated Raman adiabatic passage process(STIRAP) as an effective method of generating ultracold molecules from its atomic counterparts has been widely studied.In this article,we mainly focus on the recent research progress of dynamics,adiabaticity and instability of the dark state in the atom-molecule STIRAP.