Work

Searching for new fundamental interactions via isotopic shifts in molecular lattice clocks

Year: 2024

Type: article

Abstract: Precision measurements with ultracold atoms and molecules are primed to probe beyond-the-standard model physics. Isotopologues of homonuclear molecules are a natural testbed for new Yukawa-type mass-dependent forces at nanometer scales, complementing existing mesoscopic-body and neutron scattering experiments. Here, we propose using isotopic shift measurements in molecular lattice clocks to constrain these new interactions from new massive scalar particles in the keV / c 2 range: The new interaction would impart an extra isotopic shift to molecular levels on top of one predicted by the standard model. For the strontium dimer, a Hz-level agreement between experiment and theory could constrain the coupling of the new particles to hadrons by up to an order of magnitude over the most stringent existing experiments. Published by the American Physical Society 2024

Source: Physical Review Research

DOI: 10.1103/physrevresearch.6.033013

Authors: E. Tiberi, M. Borkowski, B. Iritani, R. Moszynski, T. Zelevinsky

Institutions: Brandeis University, Columbia University, University of Amsterdam, University of Warsaw

Language: English

Topic: Advanced Frequency and Time Standards

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,625

Funders: National Science Foundation, Narodowe Centrum Nauki, Narodowa Agencja Wymiany Akademickiej, Air Force Office of Scientific Research