Microwave state transfer and adiabatic dynamics of magnetically trapped polar molecules

Details Microwave state transfer and adiabatic dynamics of magnetically trapped polar molecules Microwave state transfer and adiabatic dynamics of magnetically trapped polar molecules

2011-08-24

arxiv.org/abs/1108.4871v1

Physics

Atomic Physics

5 pages, 4 figures plus supplementary material

Scientific paper

Cold and ultracold polar molecules with nonzero electronic angular momentum are of great interest for studies in quantum chemistry and control, investigations of novel quantum systems, and precision measurement. However, in mixed electric and magnetic fields, these molecules are generically subject to a large set of avoided crossings among their Zeeman sublevels; in magnetic traps, these crossings lead to distorted potentials and trap loss from electric bias fields. We have characterized these crossings in OH by microwave-transferring trapped OH molecules from the upper |f; M = +3/2> parity state to the lower |e; +3/2> state and observing their trap dynamics under an applied electric bias field. Our observations are very well described by a simple Landau-Zener model, yielding insight to the rich spectra and dynamics of polar radicals in mixed external fields.

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