title: Coherent Heteronuclear Spin Dynamics in an Ultracold Spinor Mixture.
abstract: We report the observation of coherent heteronuclear spin dynamics driven by interspecies spin-spin interaction in an ultracold spinor mixture, which manifests as periodical and well-correlated spin oscillations between two atomic species. In particular, we investigate the magnetic field dependence of the oscillations and find a resonance behavior which depends on both the linear and quadratic Zeeman effects and the spin-dependent interaction. We also demonstrate a unique knob for controlling the spin dynamics in the spinor mixture with species-dependent vector light shifts.
authors.affiliation: Department of Physics, The Chinese University of Hong Kong, Hong Kong, China.
authors.forename: Xiaoke
authors.initials: X
authors.lastname: Li
authors.affiliation: Department of Physics, The Chinese University of Hong Kong, Hong Kong, China.
authors.forename: Bing
authors.initials: B
authors.lastname: Zhu
authors.affiliation: Department of Physics, The Chinese University of Hong Kong, Hong Kong, China.
authors.forename: Xiaodong
authors.initials: X
authors.lastname: He
authors.affiliation: Department of Physics, The Chinese University of Hong Kong, Hong Kong, China.
authors.forename: Fudong
authors.initials: F
authors.lastname: Wang
authors.affiliation: Department of Physics, The Chinese University of Hong Kong, Hong Kong, China.
authors.forename: Mingyang
authors.initials: M
authors.lastname: Guo
authors.affiliation: Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA.
authors.forename: Zhi-Fang
authors.initials: ZF
authors.lastname: Xu
authors.affiliation: Department of Physics and Centre of Theoretical and Computational Physics, The University of Hong Kong, Hong Kong, China.
authors.forename: Shizhong
authors.initials: S
authors.lastname: Zhang
authors.affiliation: Department of Physics, The Chinese University of Hong Kong, Hong Kong, China.
authors.forename: Dajun
authors.initials: D
authors.lastname: Wang