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Clock-mediated laser cooling on the meta-stable state in a 1D optical lattice clock

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Abstract

Optical lattice clocks have demonstrated unprecedented performance below the 10−18 fractional level [1], towards new standards of time and sensitive probes in fundamental physics. Here, we report on a novel cooling scheme on the excited meta-stable 3P0 state in a 1D 171Yb optical lattice clock. The Sisyphus cooling scheme operates by dressing the clock state with a standing wave that connects to a higher lying excited state[2], and is mediated by excitation on the clock transition. This cooling technique can be useful for the efficient loading of shallow lattices, which in turn help reduce systematic clock shifts from the trap itself to the 10−19 level and below.

[1] McGrew, W.F. et al., Nature 564, 87–90 (2018). [2] Saijun Wu et al., Phys. Rev. Lett. 106, 213001(2011).

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Publication: [1] McGrew, W.F. et al., Nature 564, 87–90 (2018).<br>[2] Saijun Wu et al., Phys. Rev. Lett. 106, 213001(2011).

Presenters

  • ChunChia Chen

    University of Amsterdam, National Institute of Standards and Technology, University of Colorado, NIST, University of Colorado, Boulder

Authors

  • ChunChia Chen

    University of Amsterdam, National Institute of Standards and Technology, University of Colorado, NIST, University of Colorado, Boulder

  • William McGrew

    National Institute of Standards and Technology Boulder, NIST, University of Colorado, Boulder

  • Jacob Siegel

    NIST, University of Colorado, Boulder

  • Xiaogang Zhang

    National Institute of Standards and Technology Boulder, NIST, University of Colorado, Boulder

  • Youssef Hassan

    National Institute of Standards and Technology\University of Colorado, Boulder, NIST, University of Colorado, Boulder

  • Kyle P Beloy

    NIST, University of Colorado, Boulder

  • Andrew Ludlow

    NIST, University of Colorado, Boulder