Realization of a Strongly Interacting Fermi Gas of Dipolar Atoms

S. Baier, D. Petter, J. H. Becher, A. Patscheider, G. Natale, L. Chomaz, M. J. Mark, and F. Ferlaino
Phys. Rev. Lett. 121, 093602 – Published 29 August 2018
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Abstract

We realize a two-component dipolar Fermi gas with tunable interactions, using erbium atoms. Employing a lattice-protection technique, we selectively prepare deeply degenerate mixtures of the two lowest spin states and perform high-resolution Feshbach spectroscopy in an optical dipole trap. We identify a comparatively broad Feshbach resonance and map the interspin scattering length in its vicinity. The Fermi mixture shows a remarkable collisional stability in the strongly interacting regime, providing a first step towards studies of superfluid pairing, crossing from Cooper pairs to bound molecules, in presence of dipole-dipole interactions.

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  • Received 30 March 2018

DOI:https://doi.org/10.1103/PhysRevLett.121.093602

© 2018 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

S. Baier1, D. Petter1, J. H. Becher1,*, A. Patscheider1,2, G. Natale1, L. Chomaz1, M. J. Mark1,2, and F. Ferlaino1,2,†

  • 1Institut für Experimentalphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
  • 2Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria

  • *Present address: Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany.
  • To whom all correspondence should be addressed. francesca.ferlaino@uibk.ac.at

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Issue

Vol. 121, Iss. 9 — 31 August 2018

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