title: Observation of an Orbital Interaction-Induced Feshbach Resonance in (173)Yb.
abstract: We report on the experimental observation of a novel interorbital Feshbach resonance in ultracold (173)Yb atoms. This opens up the possibility of tuning the interactions between the (1)S(0) and (3)P(0) metastable state, both possessing zero total electronic angular momentum. The resonance is observed at experimentally accessible magnetic field strengths and occurs universally for all hyperfine state combinations. We characterize the resonance in the bulk via interorbital cross thermalization as well as in a three-dimensional lattice using high-resolution clock-line spectroscopy. Our measurements are well described by a generalized two-channel model of the orbital-exchange interactions.
authors.affiliation: Ludwig-Maximilians-Universität, Schellingstraße 4, 80799 München, Germany.|Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Höfer
authors.affiliation: Ludwig-Maximilians-Universität, Schellingstraße 4, 80799 München, Germany.|Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.
authors.forename: L
authors.initials: L
authors.lastname: Riegger
authors.affiliation: Ludwig-Maximilians-Universität, Schellingstraße 4, 80799 München, Germany.|Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.
authors.forename: F
authors.initials: F
authors.lastname: Scazza
authors.affiliation: Ludwig-Maximilians-Universität, Schellingstraße 4, 80799 München, Germany.|Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.
authors.forename: C
authors.initials: C
authors.lastname: Hofrichter
authors.affiliation: Ludwig-Maximilians-Universität, Schellingstraße 4, 80799 München, Germany.|Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.
authors.forename: D R
authors.initials: DR
authors.lastname: Fernandes
authors.affiliation: School of Physics and Astronomy, Monash University, Victoria 3800, Australia.
authors.forename: M M
authors.initials: MM
authors.lastname: Parish
authors.affiliation: School of Physics and Astronomy, Monash University, Victoria 3800, Australia.
authors.forename: J
authors.initials: J
authors.lastname: Levinsen
authors.affiliation: Ludwig-Maximilians-Universität, Schellingstraße 4, 80799 München, Germany.|Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.
authors.forename: I
authors.initials: I
authors.lastname: Bloch
authors.affiliation: Ludwig-Maximilians-Universität, Schellingstraße 4, 80799 München, Germany.|Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Fölling