Rostock 2019 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 35: Precision Spectroscopy of atoms and ions
A 35.7: Poster
Donnerstag, 14. März 2019, 16:15–18:15, S Fobau Physik
Realistic atomic clock simulations with single to hundreds of atoms — •Marius Schulte1, Víctor J. Martínez-Lahuerta1, Piet O. Schmidt2, 3, and Klemens Hammerer1 — 1Institute for Theoretical Physics and Institute for Gravitational Physics (Albert-Einstein-Institute), Leibniz University Hannover — 2Physikalisch-Technische Bundesanstalt, 38116 Braunschweig — 3Institute for Quantum Optics, Leibniz University Hannover
Recently, optical atomic clocks have shown great success in achieving systematic fractional frequency uncertainties on the order of 10−18 using few hundreds of uncorrelated reference atoms. However the extent to which entanglement can improve such atomic clocks in practice, including realistic local oscillator noise, preparation errors and dead time, has so far been little researched. To answer this question we investigate numerically the long-term stability of optical atomic clocks with entangled atoms. We tackle in particular the exact dynamics of symmetrical systems containing single to few hundred atoms, which lie beyond the validity of Gaussian approximations.