title: Many-body dynamics of dipolar molecules in an optical lattice.
abstract: We use Ramsey spectroscopy to experimentally probe the quantum dynamics of disordered dipolar-interacting ultracold molecules in a partially filled optical lattice, and we compare the results to theory. We report the capability to control the dipolar interaction strength. We find excellent agreement between our measurements of the spin dynamics and theoretical calculations with no fitting parameters, including the dynamics' dependence on molecule number and on the dipolar interaction strength. This agreement verifies the microscopic model expected to govern the dynamics of dipolar molecules, even in this strongly correlated beyond-mean-field regime, and represents the first step towards using this system to explore many-body dynamics in regimes that are inaccessible to current theoretical techniques.
authors.affiliation: JILA, National Institute of Standards and Technology and University of Colorado, Department of Physics, University of Colorado, Boulder, Colorado 80309-0440, USA.
authors.forename: Kaden R A
authors.initials: KR
authors.lastname: Hazzard
authors.affiliation: JILA, National Institute of Standards and Technology and University of Colorado, Department of Physics, University of Colorado, Boulder, Colorado 80309-0440, USA.
authors.forename: Bryce
authors.initials: B
authors.lastname: Gadway
authors.affiliation: Joint Quantum Institute, National Institute of Standards and Technology, and University of Maryland, Gaithersburg, Maryland 20899, USA.
authors.forename: Michael
authors.initials: M
authors.lastname: Foss-Feig
authors.affiliation: JILA, National Institute of Standards and Technology and University of Colorado, Department of Physics, University of Colorado, Boulder, Colorado 80309-0440, USA.
authors.forename: Bo
authors.initials: B
authors.lastname: Yan
authors.affiliation: JILA, National Institute of Standards and Technology and University of Colorado, Department of Physics, University of Colorado, Boulder, Colorado 80309-0440, USA.
authors.forename: Steven A
authors.initials: SA
authors.lastname: Moses
authors.affiliation: JILA, National Institute of Standards and Technology and University of Colorado, Department of Physics, University of Colorado, Boulder, Colorado 80309-0440, USA.
authors.forename: Jacob P
authors.initials: JP
authors.lastname: Covey
authors.affiliation: Physics Department, Harvard University, Cambridge, Massuchusetts 02138, USA.
authors.forename: Norman Y
authors.initials: NY
authors.lastname: Yao
authors.affiliation: Physics Department, Harvard University, Cambridge, Massuchusetts 02138, USA.
authors.forename: Mikhail D
authors.initials: MD
authors.lastname: Lukin
authors.affiliation: JILA, National Institute of Standards and Technology and University of Colorado, Department of Physics, University of Colorado, Boulder, Colorado 80309-0440, USA.
authors.forename: Jun
authors.initials: J
authors.lastname: Ye
authors.affiliation: JILA, National Institute of Standards and Technology and University of Colorado, Department of Physics, University of Colorado, Boulder, Colorado 80309-0440, USA.
authors.forename: Deborah S
authors.initials: DS
authors.lastname: Jin
authors.affiliation: JILA, National Institute of Standards and Technology and University of Colorado, Department of Physics, University of Colorado, Boulder, Colorado 80309-0440, USA.
authors.forename: Ana Maria
authors.initials: AM
authors.lastname: Rey