Precision spectroscopy with two correlated atoms
نویسندگان
چکیده
We discuss techniques that allow for long coherence times in laser spectroscopy experiments with two trapped ions. We show that for this purpose not only entangled ions prepared in decoherence-free subspaces can be used but also a pair of ions that are not entangled but subject to the same kind of phase noise. We apply this technique to a measurement of the electric quadrupole moment of the 3dD5/2 state of Ca and to a measurement of the line width of an ultra-stable laser exciting a pair of Ca ions.
منابع مشابه
Recent advances in precision spectroscopy of ultracold atoms and ions
New methods and approaches in precision spectroscopy of ultracold atoms and ions are reviewed with an emphasis on contributions of Institute of Laser Physics SB RAS.
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