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Magnetically tunable electric dipolar interactions of ultracold polar molecules in the quantum ergodic regime

Atomic Physics 2024-01-11 v1 Quantum Gases Chemical Physics

Abstract

By leveraging the hyperfine interaction between the rotational and nuclear spin degrees of freedom, we demonstrate extensive magnetic control over the electric dipole moments, electric dipolar interactions, and ac Stark shifts of ground-state alkali-dimer molecules such as KRb(X1Σ)(X^1\Sigma). The control is enabled by narrow avoided crossings and the highly ergodic character of molecular eigenstates at low magnetic fields, offering a general and robust way of continuously tuning the intermolecular electric dipolar interaction for applications in quantum simulation and sensing.

Keywords

Cite

@article{arxiv.2401.04902,
  title  = {Magnetically tunable electric dipolar interactions of ultracold polar molecules in the quantum ergodic regime},
  author = {Rebekah Hermsmeier and Ana Maria Rey and Timur V. Tscherbul},
  journal= {arXiv preprint arXiv:2401.04902},
  year   = {2024}
}