Barium-monofluoride within argon and neon solids: Calculations to support the EDMcubed scheme for measuring the electron electric dipole moment

POSTER

Abstract

The EDMcubed collaboration is working towards a measurement of the electric dipole moment of the electron (eEDM) using barium-monofluoride (BaF) embedded in an argon solid. The large numbers of embedded BaF in this measurement scheme [1] gives the potential for a very precise eEDM measurement. In this work, we present precise relativistic electronic structure calculations (all-electron, with an extrapolation to a complete basis set) of the BaF-Ar [2] and BaF-Ne tri-atomic system, for a wide range of BaF-Ar separations and angles. The resulting potentials can be parameterized and used to model a BaF molecule embedded into an Ar [3] or Ne solid to determine the structure of the local environment around the BaF molecule.

[1] A. C. Vutha, M. Horbatsch and E. A. Hessels, Phys. Rev. A 98, 032513 (2018).

[2] G.K. Koyanagi, R.L. Lambo, A. Ragyanszki, R. Fournier, M. Horbatsch and E.A. Hessels, J. Mol. Spect. 391, 111736 (2023).

[3] R. L. Lambo, G. K. Koyanagi, A. Ragyanszki, M. Horbatsch, R. Fournier and E. A. Hessels, arXiv:2212.09232 (2022).

*This work is supported by the Gordon and Betty Moore Foundation, United States, the Alfred P. Sloan Foundation, United States, the Templeton Foundation in conjunction with the Northwestern Center for Fundamental Physics, the Natural Sciences and Engineering Research Council of Canada and York University, Canada. Computations for this work were supported by the Shared Hierarchical Academic Research Computing Network, Compute Ontario and the Digital Research Alliance of Canada.

Presenters

  • Eric A Hessels

    • York University

Authors

  • Ricardo L Lambo

    • York University

  • Gregory K Koyanagi

    • York University

  • Marko Horbatsch

    • York University

  • René Fournier

    • York University

  • Eric A Hessels

    • York University