title: Direct observation of coherent interorbital spin-exchange dynamics.
abstract: We report on the first direct observation of fast spin-exchange coherent oscillations between different long-lived electronic orbitals of ultracold 173Yb fermions. We measure, in a model-independent way, the strength of the exchange interaction driving this coherent process. This observation allows us to retrieve important information on the interorbital collisional properties of 173Yb atoms and paves the way to novel quantum simulations of paradigmatic models of two-orbital quantum magnetism.
authors.affiliation: LENS European Laboratory for Nonlinear Spectroscopy, Sesto Fiorentino 50019, Italy and INO-CNR Istituto Nazionale di Ottica del CNR, Sezione di Sesto Fiorentino, Sesto Fiorentino 50019, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Cappellini
authors.affiliation: Department of Physics and Astronomy, University of Florence, Sesto Fiorentino 50019, Italy and INO-CNR Istituto Nazionale di Ottica del CNR, Sezione di Sesto Fiorentino, Sesto Fiorentino 50019, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Mancini
authors.affiliation: INO-CNR Istituto Nazionale di Ottica del CNR, Sezione di Sesto Fiorentino, Sesto Fiorentino 50019, Italy and Scuola Normale Superiore di Pisa, Pisa 56126, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Pagano
authors.affiliation: LENS European Laboratory for Nonlinear Spectroscopy, Sesto Fiorentino 50019, Italy.
authors.forename: P
authors.initials: P
authors.lastname: Lombardi
authors.affiliation: Department of Physics and Astronomy, University of Florence, Sesto Fiorentino 50019, Italy.
authors.forename: L
authors.initials: L
authors.lastname: Livi
authors.affiliation: INO-CNR Istituto Nazionale di Ottica del CNR, Sezione di Sesto Fiorentino, Sesto Fiorentino 50019, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Siciliani de Cumis
authors.affiliation: LENS European Laboratory for Nonlinear Spectroscopy, Sesto Fiorentino 50019, Italy and Department of Physics and Astronomy, University of Florence, Sesto Fiorentino 50019, Italy and INO-CNR Istituto Nazionale di Ottica del CNR, Sezione di Sesto Fiorentino, Sesto Fiorentino 50019, Italy.
authors.forename: P
authors.initials: P
authors.lastname: Cancio
authors.affiliation: INRIM Istituto Nazionale di Ricerca Metrologica, Torino 10135, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Pizzocaro
authors.affiliation: INRIM Istituto Nazionale di Ricerca Metrologica, Torino 10135, Italy.
authors.forename: D
authors.initials: D
authors.lastname: Calonico
authors.affiliation: INRIM Istituto Nazionale di Ricerca Metrologica, Torino 10135, Italy.
authors.forename: F
authors.initials: F
authors.lastname: Levi
authors.affiliation: LENS European Laboratory for Nonlinear Spectroscopy, Sesto Fiorentino 50019, Italy and INO-CNR Istituto Nazionale di Ottica del CNR, Sezione di Sesto Fiorentino, Sesto Fiorentino 50019, Italy.
authors.forename: C
authors.initials: C
authors.lastname: Sias
authors.affiliation: LENS European Laboratory for Nonlinear Spectroscopy, Sesto Fiorentino 50019, Italy and INO-CNR Istituto Nazionale di Ottica del CNR, Sezione di Sesto Fiorentino, Sesto Fiorentino 50019, Italy.
authors.forename: J
authors.initials: J
authors.lastname: Catani
authors.affiliation: LENS European Laboratory for Nonlinear Spectroscopy, Sesto Fiorentino 50019, Italy and Department of Physics and Astronomy, University of Florence, Sesto Fiorentino 50019, Italy and INRIM Istituto Nazionale di Ricerca Metrologica, Torino 10135, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Inguscio
authors.affiliation: LENS European Laboratory for Nonlinear Spectroscopy, Sesto Fiorentino 50019, Italy and Department of Physics and Astronomy, University of Florence, Sesto Fiorentino 50019, Italy and INO-CNR Istituto Nazionale di Ottica del CNR, Sezione di Sesto Fiorentino, Sesto Fiorentino 50019, Italy.
authors.forename: L
authors.initials: L
authors.lastname: Fallani