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Phys. Rev. A 74, 061402(R) (2006) [4 pages]

OH hyperfine ground state: From precision measurement to molecular qubits

Benjamin L. Lev, Edmund R. Meyer, Eric R. Hudson, Brian C. Sawyer, John L. Bohn, and Jun Ye
JILA, National Institute of Standards and Technology and the University of Colorado , Boulder, Colorado 80309-0440, USA Department of Physics, University of Colorado, Boulder, Colorado 80309-0440, USA
Rapid Received 18 August 2006; published 21 December 2006

We perform precision microwave spectroscopy—aided by Stark deceleration—to reveal the low-magnetic-field behavior of OH in its 2Pi3/2 rovibronic ground state, identifying two field-insensitive hyperfine transitions suitable as qubits and determining a differential Landé g factor of 1.267(5)×10−3 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 DeltaF=±1 satellite-line frequencies, yielding 1  720  529  887(10)  Hz and 1  612  230  825(15)  Hz.

©2006 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevA.74.061402
DOI: 10.1103/PhysRevA.74.061402
PACS: 33.55.Be; 33.20.Bx; 33.15.Pw; 39.10.+j
  • 33.55.Be
    Zeeman and Stark effects (molecules)
  • 33.20.Bx
    Radio-frequency and microwave molecular spectra
  • 33.15.Pw
    Molecular fine and hyperfine structure
  • 39.10.+j
    Atomic and molecular beam sources and techniques
  • YEAR: 2006
KEYWORDS: oxygen compounds, hyperfine structure, quantum computing, ground states, microwave spectra, rotational-vibrational states, Zeeman effect

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