• Corpus ID: 146120512

Fundamental bounds on rotational state change in sympathetic cooling of molecular ions

@article{Berglund2019FundamentalBO,
  title={Fundamental bounds on rotational state change in sympathetic cooling of molecular ions},
  author={J. Martin Berglund and Michael Drewsen and Christiane P. Koch},
  journal={arXiv: Quantum Physics},
  year={2019}
}
Sympathetic cooling of molecular ions through the Coulomb interaction with laser-cooled atomic ions is an efficient tool to prepare translationally cold molecules. Even at relatively high collisional energies of about 1$\,$eV ($T\sim 10000 \,$K), the nearest approach in the ion-ion collisions never gets closer than $\sim$$1\,$nm such that naively perturbations of the internal molecular state are not expected. The Coulomb field may, however, induce rotational transitions changing the purity of… 

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