Coherent spin mixing dynamics in thermal ${}^{87}$Rb spin-1 and spin-2 gases

Abstract

We study the non-equilibrium coherent spin mixing dynamics in ferromagnetic spin-1 and antiferromagnetic spin-2 thermal gases of ultracold ${}^{87}$Rb atoms. Long lasting spin population oscillations with magnetic field dependent resonances are observed in both cases. Our observations are well reproduced by Boltzmann equations of the Wigner distribution function. Compared to the equation of motion of spinor Bose-Einstein condensates, the only difference here is a factor of two increase in the spin-dependent interaction, which is confirmed directly in the spin-2 case by measuring the relation between the oscillation amplitude and the sample's density.

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Cited by in corpus (13)

• Coherent heteronuclear spin dynamics in an ultracold spin-1 mixture
• Stepwise Bose-Einstein condensation in a spinor gas
• Thermally-robust spin correlations between two 85Rb atoms in an optical microtrap
• Multi-second magnetic coherence in a single domain spinor Bose-Einstein condensate
• Fractional-charge vortex in a spinor Bose-Einstein condensate
• Manipulation of heteronuclear spin dynamics with microwave and vector light shift
• Magnetic field induced dynamical instabilities in an anti-ferromagnetic spin-1 Bose-Einstein condensate
• Engineering Dynamical Phase Diagrams with Driven Lattices in Spinor Gases
• Resonant Spin Exchange between Heteronuclear Atoms Assisted by Periodic Driving
• Metastable spin-phase diagrams in antiferromagnetic Bose-Einstein condensates
• Ground State Properties of Anti-Ferromagnetic Spinor Bose gases in One Dimension
• The weakening of fermionization of one dimensional spinor Bose gases induced by spin-exchange interaction
• Control of dynamical phase transitions and non-ergodic relaxation via spinor phases