OH hyperfine ground state: from precision measurement to molecular qubits

Details OH hyperfine ground state: from precision measurement to molecular qubits OH hyperfine ground state: from precision measurement to molecular qubits

2006-08-18

arxiv.org/abs/physics/0608194v1

Phys. Rev. A Rapid 74 (2006) 061402

Physics

Atomic Physics

4+ pages, 3 figures

Scientific paper

10.1103/PhysRevA.74.061402

We perform precision microwave spectroscopy--aided by Stark deceleration--to reveal the low magnetic field behavior of OH in its ^2\Pi_{3/2} ro-vibronic ground state, identifying two field-insensitive hyperfine transitions suitable as qubits and determining a differential Lande g-factor of 1.267(5)\times10^{-3} between opposite parity components of the \Lambda-doublet. The data are successfully modeled with an effective hyperfine Zeeman Hamiltonian, which we use to make a tenfold improvement of the magnetically sensitive, astrophysically important \Delta F=\pm1 satellite-line frequencies, yielding 1720529887(10) Hz and 1612230825(15) Hz.

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