5 papers
High-resolution spectroscopy of barium monofluoride: Odd isotopologues, hyperfine structure and isotope shifts
Felix Kogel, Yuly Chamorro, Mangesh Bhattarai +5
Barium monofluoride (BaF) is a promising molecular species for precision tests of fundamental symmetries and interactions. We present a combined theoretical and experimental study…
Magnetic hyperfine structure constants of BaF in the and excited states
Yuly Chamorro, Felix Kogel, Tim Langen +1
High-precision molecular experiments testing the Standard Model of particle physics require an accurate understanding of the molecular structure at the hyperfine level, both for th…
Self-bound monolayer crystals of ultracold polar molecules
Matteo Ciardi, Kasper Rønning Pedersen, Tim Langen +1
We investigate the physics of ultracold dipolar molecules using path-integral quantum Monte Carlo simulations, and construct the complete phase diagram extending from weak to stron…
Laser cooled 137BaF molecules for measuring nuclear-spin-dependent parity violation
Felix Kogel, Tatsam Garg, Marian Rockenhäuser +1
We demonstrate optical cycling and transverse laser cooling of a beam of fermionic 137BaF molecules. Their high masses and nuclear spins make these molecules sensitive probes for p…
Molecular laser cooling using serrodynes: Implementation, characterization and prospects
Felix Kogel, Tatsam Garg, Marian Rockenhäuser +2
An important effort is currently underway to extend optical cycling and laser cooling to more molecular species. Significant challenges arise in particular when multiple nuclear sp…