Open AccessAdiabatic conversion from ultracold atoms to heteronuclear tetrameric molecule A3B
Author(s) -
Li Guan-Qiang,
Ping Peng,
Cao Zhen-Zhou,
Ju-Kui Xue
Publication year - 2012
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.61.090301
Subject(s) - heteronuclear molecule , homonuclear molecule , stimulated raman adiabatic passage , physics , tetramer , atomic physics , adiabatic process , molecule , trimer , molecular physics , nuclear magnetic resonance , quantum mechanics , dimer , enzyme
We present a theoretical scheme for conversion from ultracold atoms to heteronuclear tetrameric molecule A3B via Efimov resonace-assisted stimulated Raman adiabatic passage (ER-STIRAP). The dark state solutions of the system are obtianed for two different pathways. For the first pathway, the intermediate state is populated by homonuclear Efimov trimer A3, and the second one by heteronuclear Efimov trimer A2B. The feasibility and the effectiveness of the scheme are also verified. Meanwhile, we investigate the effects of external field parameters, including the intensity of associated laser pulses, its width, magnetic coupling strength and its detuning, on the fomation of heteronuclear tetrameric molecules. By comparison, it is found that the ultimate yield of the tetrameric molecules for the second pathway is less than ones for the first pathway. In addition, the effects of the intrinsic nolinearity of the system and the spontaneous decay in the intermediate state on the tetramer formation are discussed.