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${}^{-18}$ level of accuracy.

arXiv commentaccepted for publication in PRA

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Cited by in corpus (14)

• Towards a Mg lattice clock: Observation of the ${}^1{S}_0-$${}^3{P}_0$ transition and determination of the magic wavelength
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• Progress and perspectives on composite laser-pulses spectroscopy for high-accuracy optical clocks
• Modified hyper-Ramsey methods for the elimination of probe shifts in optical clocks
• Universal methods for suppressing the light shift in atomic clocks using power modulation
• Generalized Hyper-Ramsey Resonance with separated oscillating fields
• Probe light-shift elimination in Generalized Hyper-Ramsey quantum clocks
• Combined error signal in Ramsey spectroscopy of clock transitions
• Universal ultra-robust interrogation protocol with zero probe-field-induced frequency shift for quantum clocks and high-accuracy spectroscopy
• Hyper-Ramsey spectroscopy with probe laser intensity fluctuations
• Atoms trapped by a spin-dependent optical lattice potential: realization of a ground state quantum rotor
• Composite pulses in Hyper-Ramsey spectroscopy for the next generation of atomic clocks
• A quantum model of lasing without inversion
• Quantum Rotor Atoms in Light Beams with Orbital Angular Momentum: Highly Accurate Rotation Sensor