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5 March 2019 Precision measurement with a strontium molecular clock (Conference Presentation)
Stanimir Kondov
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Proceedings Volume 10934, Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology; 1093429 (2019) https://doi.org/10.1117/12.2515798
Event: SPIE OPTO, 2019, San Francisco, California, United States
Abstract
We extend techniques commonly used in optical atomic clocks to perform precise metrology of binding energies and coherent control of deeply bound Sr2 molecules. Clock transitions between two vibrational levels in the electronic ground state potential are driven via two-photon Raman process. We achieve Rabi oscillations across the ground state potential and employ a magic wavelength technique to eliminate the differential light shift using narrow polarizability resonances. This allows us to increase coherence by three orders of magnitude and obtain a preliminary linewidth of <100 Hz for a 26 THz transition. This development clears the path toward the realization of a molecular clock for the study of fundamental physics.
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Stanimir Kondov "Precision measurement with a strontium molecular clock (Conference Presentation)", Proc. SPIE 10934, Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology, 1093429 (5 March 2019); https://doi.org/10.1117/12.2515798
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KEYWORDS
Clocks
Precision measurement
Strontium
Atomic clocks
Metrology
Molecules
Physics
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