Ultracold Dipolar Molecules Composed of Strongly Magnetic Atoms

by A. Frisch, M. Mark, K. Aikawa., S. Baier., R. Grimm, A. Petrov, S. Kotochigova, G. Quéméner, M. Lepers, O. Dulieu, F. Ferlaino

Abstract:

In a combined experimental and theoretical effort, we demonstrate a novel type of dipolar system made of ultracold bosonic polar molecules with large magnetic dipole moments. Our polar molecules are formed in weakly bound Feshbach molecular states from a sample of strongly magnetic bosonic erbium atoms. We show that the ultracold magnetic molecules can carry very large dipole moments and we demonstrate how to create and characterize them, and how to change their orientation. Finally, we confirm that the relaxation rates of molecules in a quasi-two dimensional geometry can be reduced by using the anisotropy of the dipole-dipole interaction and that this reduction follows a universal dipolar behavior.

View PDF

Reference:

Ultracold Dipolar Molecules Composed of Strongly Magnetic Atoms,
A. Frisch, M. Mark, K. Aikawa., S. Baier., R. Grimm, A. Petrov, S. Kotochigova, G. Quéméner, M. Lepers, O. Dulieu, F. Ferlaino,
Phys. Rev. Lett., 115, 203201, 2015.

Bibtex Entry:

@Article{Molecules,

  title = {Ultracold Dipolar Molecules Composed of Strongly Magnetic Atoms},

  author = {A. Frisch and M. Mark  and K. Aikawa. and S. Baier. and R. Grimm and A. Petrov and Kotochigova, S. and Qu'em'ener, G. and Lepers, M. and Dulieu, O. and F. Ferlaino},

  journal = {Phys. Rev. Lett.},

  volume = {115},

  issue = {20},

  pages = {203201},

  numpages = {5},

  year = {2015},

  month = {Nov},

  abstract = {In a combined experimental and theoretical effort, we demonstrate a novel type of dipolar system made of ultracold bosonic polar molecules with large magnetic dipole moments. Our polar molecules are formed in weakly bound Feshbach molecular states from a sample of strongly magnetic bosonic erbium atoms. We show that the ultracold magnetic molecules can carry very large dipole moments and we demonstrate how to create and characterize them, and how to change their orientation. Finally, we confirm that the relaxation rates of molecules in a quasi-two dimensional geometry can be reduced by using the anisotropy of the dipole-dipole interaction and that this reduction follows a universal dipolar behavior.},

  publisher = {American Physical Society},

  doi = {10.1103/PhysRevLett.115.203201},

  url = {http://link.aps.org/doi/10.1103/PhysRevLett.115.203201},

  arXiv = {http://arxiv.org/abs/1504.04578}

}