10.5281/zenodo.1197053
S. Origlia, M.S. Pramod, S. Schiller, Y. Singh, K. Bongs, R. Schwarz, A. Al-Masoudi, S. Dorscher, S. Herbers, S. Hafner, U. Sterr and Ch. Lisdat
Institut fur Experimentalphysik, Heinrich-Heine-Universitat Dusseldorf, 40225 Dusseldorf, Germany, University of Birmingham, Birmingham B15 2TT, United Kingdom, Physikalisch-Technische Bundesanstalt, 38116 Braunschweig, Germany
A High-Performance Optical Lattice Clock Based On Bosonic Atoms
Zenodo
2018
2018-02-24
Journal article
https://zenodo.org/record/1197053
http://arxiv.org/abs/1803.03157
10.5281/zenodo.1197052
Creative Commons Attribution 4.0
Open Access
<p>Optical lattice clocks with uncertainty and instability in the 1017-range and below have so far<br>
been demonstrated exclusively using fermions. Here, we demonstrate a bosonic optical lattice clock<br>
with 3 1018 instability and 2:0 1017 accuracy, both values improving on previous work by a<br>
factor 30. This was enabled by probing the clock transition with an ultra-long interrogation time of<br>
4 s, using the long coherence time provided by a cryogenic silicon resonator, by careful stabilization<br>
of relevant operating parameters, and by operating at low atom density. This work demonstrates<br>
that bosonic clocks, in combination with highly coherent interrogation lasers, are suitable for highaccuracy<br>
applications with particular requirements, such as high reliability, transportability, operation<br>
in space, or suitability for particular fundamental physics topics. As an example, we determine<br>
the 88Sr { 87Sr isotope shift with 12 mHz uncertainty.</p>
European Commission
10.13039/501100000780
691156
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