Composite pulses in Hyper-Ramsey spectroscopy for the next generation of atomic clocks

Abstract

The next generation of atomic frequency standards based on an ensemble of neutral atoms or a single-ion will provide very stringent tests in metrology, applied and fundamental physics requiring a new step in very precise control of external systematic corrections. In the proceedings of the 8th Symposium on Frequency Standards and Metrology, we present a generalization of the recent Hyper-Ramsey spectroscopy with separated oscillating fields using composites pulses in order to suppress field frequency shifts induced by the interrogation laser itself. Sequences of laser pulses including specific selection of phases, frequency detunings and durations are elaborated to generate spectroscopic signals with a strong reduction of the light-shift perturbation by off resonant states. New optical clocks based on weakly allowed or completely forbidden transitions in atoms, ions, molecules and nuclei will benefit from these generalized Ramsey schemes to reach relative accuracies well below the 10${}^{-18}$ level.

arXiv commentaccepted as proceedings of the 8th Symposium on Frequency Standards and Metrology (Potsdam Germany, 12-16 october 2015)

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Cited by in corpus (5)

• Progress and perspectives on composite laser-pulses spectroscopy for high-accuracy optical clocks
• Generation of high-purity, low-temperature samples of ${}^{39}$K for applications in metrology
• Universal ultra-robust interrogation protocol with zero probe-field-induced frequency shift for quantum clocks and high-accuracy spectroscopy
• SU(2) hyper-clocks: quantum engineering of spinor interferences for time and frequency metrology
• Cyclicity of interaction frame transformations