Efficient atom-molecule conversion in Bose–Einstein condensates based on nonlinear dressed-state scheme

Hong Cao, Xiang-Yu Han and Hai-Ying Wu

Chaos, Solitons & Fractals, 2023, vol. 174, issue C

Abstract: We investigate the dynamics of atomic and molecular Bose–Einstein condensates via nonlinearly dressed states. Under the resonance-locking condition, we add a correction for an initial Hamiltonian to construct the dressed states with only second-order nonlinearity. Compared to the nonlinear stimulated Raman adiabatic passage, atomic-molecular conversion in our protocol is realized by following the dressed states instead of the dark state, thus it can produce a fast conversion passage. Furthermore, we introduce a control parameter to reduce the occupancy of the excited molecule state, and the conversion efficiency can be improved significantly by increasing the value of this parameter.

Keywords: Nonlinearity; Atomic-molecular conversion; The nonlinear stimulated adiabatic passage; The dressed states (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:174:y:2023:i:c:s096007792300783x

DOI: 10.1016/j.chaos.2023.113882

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