From Event: SPIE Quantum West, 2023
Ultracold molecules are a powerful platform for metrology, precision measurements and searches for new, beyond-the-Standard-Model physics. Sr2, thanks to its simple structure, insensitivity to external fields and narrow optical transitions, provides an excellent testbed for the search for new interactions. Here, we present a detailed characterization of our 88Sr2 molecular clock for a vibrational transition spanning the entire depth of the ground state potential. We also discuss prospects to use strontium isotopologues to place improved constraints on new mass-dependent forces, including possible pathways toward the production of ultracold 86Sr2 and 84Sr2 dimers and spectroscopy of clock lines in these species for use in the search for new mass-dependent forces.
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Mateusz Borkowski, Emily Tiberi, Brandon Iritani, Kon H. Leung, Iwona Majewska, Robert Moszynski, and Tanya Zelevinsky, "Testing fundamental physics with molecular lattice clocks," Proc. SPIE PC12447, Quantum Sensing, Imaging, and Precision Metrology, PC1244709 (Presented at SPIE Quantum West: January 28, 2023; Published: 9 March 2023); https://doi.org/10.1117/12.2657263.6321510637112.