Quantum engineering of atomic phase-shifts in optical clocks
Abstract
Quantum engineering of time-separated Raman laser pulses in three-level systems is presented to produce an ultra-narrow optical transition in bosonic alkali-earth clocks free from light shifts and with a significantly reduced sensitivity to laser parameter fluctuations. Based on a quantum artificial complex-wave-function analytical model, and supported by a full density matrix simulation including a possible residual effect of spontaneous emission from the intermediate state, atomic phase-shifts associated to Ramsey and Hyper-Ramsey two-photon spectroscopy in optical clocks are derived. Various common-mode Raman frequency detunings are found where the frequency shifts from off-resonant states are canceled, while strongly reducing their uncertainties at the 10 level of accuracy.
Cite
@article{arxiv.1407.1381,
title = {Quantum engineering of atomic phase-shifts in optical clocks},
author = {T. Zanon-Willette and S. Almonacil and E. de Clercq and A. D. Ludlow and E. Arimondo},
journal= {arXiv preprint arXiv:1407.1381},
year = {2015}
}
Comments
accepted for publication in PRA