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

8th Symposium on Frequency Standards and Metrology 2015

Zanon-Willette, T.^1 ; Minissale, M.^2,3 ; Yudin, V.I.^4,5 ; Taichenachev, A.V.^4,5

LERMA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Univ. Paris 06, Paris

F-75005, France^1

Aix Marseille Université, CNRS, PIIM UMR 7345, Marseille

13397, France^2

Aix-Marseille Université, CNRS, Centrale Marseille, Institut Fresnel UMR 7249, Marseille

13013, France^3

Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk State University, Novosibirsk

630090, Russia^4

Novosibirsk State Technical University, Novosibirsk

630092, Russia^5

关键词: Atomic frequency standards;    Forbidden transitions;    Fundamental physics;    Oscillating fields;    Precise control;    Ramsey spectroscopy;    Relative accuracy;    Spectroscopic signals;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/723/1/012057/pdf
DOI  :  10.1088/1742-6596/723/1/012057

来源: IOP

【 摘 要 】

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 10-18level.