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arXiv · 0803.1297

Atom-to-molecule conversion efficiency and adiabatic fidelity

Li-Hua Lu·You-Quan Li
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Abstract

The efficiency of converting two-species fermionic atoms into bosonic molecules is investigated in terms of mean-field Lagrangian density. We find that the STIRAP technique aided by Feshbach resonance is more effective than the bare Fechbach resonance for $^6$Li atoms rather than $^{40}$K atoms. We also make general consideration on the symmetry and its relevant conservation law, which enable us to introduce a natural definition of adiabatic fidelity for CPT state. The calculated values of the fidelity then provide an interpretation on why the conversion efficiencies for $^{40}$K and $^6$Li are distinctly different.

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Li-Hua Lu, You-Quan Li. 2008-03-09. Atom-to-molecule conversion efficiency and adiabatic fidelity. https://doi.org/10.1103/physreva.77.053611

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