Spinor dynamics in an antiferromagnetic spin-1 thermal Bose gas
arXiv:1306.4255 · doi:10.1103/PhysRevLett.111.025301
Abstract
We present experimental observations of coherent spin-population oscillations in a cold thermal, Bose gas of spin-1 sodium-23 atoms. The population oscillations in a multi-spatial-mode thermal gas have the same behavior as those observed in a single-spatial-mode antiferromagnetic spinor Bose Einstein condensate. We demonstrate this by showing that the two situations are described by the same dynamical equations, with a factor of two change in the spin-dependent interaction coefficient, which results from the change to particles with distinguishable momentum states in the thermal gas. We compare this theory to the measured spin population evolution after times up to a few hundreds of ms, finding quantitative agreement with the amplitude and period. We also measure the damping time of the oscillations as a function of magnetic field.
5 pages, 3 figures
References in corpus (12)
- Spinor Bose-Einstein condensates
- Spontaneous symmetry breaking in a quenched ferromagnetic spinor Bose condensate
- Twin matter waves for interferometry beyond the classical limit
- New limit on Lorentz and CPT-violating neutron spin interactions
- Precision measurement of spin-dependent interaction strengths for spin-1 and spin-2 87Rb atoms
- Spinor Dynamics in an Antiferromagnetic Spin-1 Condensate
- Coherent collisional spin dynamics in optical lattices
- Feshbach spectroscopy and analysis of the interaction potentials of ultracold sodium
- Spontaneous demagnetization of a dipolar spinor Bose gas at ultra-low magnetic field
- Observation of Anomalous Spin Segregation in a Trapped Fermi Gas
- Magnetically tuned spin dynamics resonance
- Spin dynamics of a trapped spin-1 Bose Gas above the Bose-Einstein transition temperature
Cited by in corpus (23)
- Dipolar physics: A review of experiments with magnetic quantum gases
- Quantum correlations and entanglement in far-from-equilibrium spin systems
- Giant spin oscillations in an ultracold Fermi sea
- Coherent heteronuclear spin dynamics in an ultracold spin-1 mixture
- Spontaneous formation and relaxation of spin domains in antiferromagnetic spin-1 quasi-condensates
- Dynamics of interacting fermions in spin-dependent potentials
- Stepwise Bose-Einstein condensation in a spinor gas
- Realizing Exactly Solvable SU(N) Magnets with Thermal Atoms
- A spinor Bose-Einstein condensate phase-sensitive amplifier for SU(1,1) interferometry
- Thermally-robust spin correlations between two 85Rb atoms in an optical microtrap
- Coherent spin mixing dynamics in thermal Rb spin-1 and spin-2 gases
- Relaxation dynamics of an isolated large-spin Fermi gas far from equilibrium
- Manipulation of heteronuclear spin dynamics with microwave and vector light shift
- Quantum Interferometry with Microwave-dressed F=1 Spinor Bose-Einstein Condensates: Role of Initial States and Long Time Evolution
- Engineering Dynamical Phase Diagrams with Driven Lattices in Spinor Gases
- Resonant Spin Exchange between Heteronuclear Atoms Assisted by Periodic Driving
- Spin dynamics of large-spin (spinor) fermions in a harmonic trap
- Beyond the Spin Model Approximation for Ramsey Spectroscopy
- Metastable spin-phase diagrams in antiferromagnetic Bose-Einstein condensates
- Exploring the thermodynamics of spin-1 Rb Bose Gases with synthetic magnetization
- Control of dynamical phase transitions and non-ergodic relaxation via spinor phases
- Collective modes of trapped spinor Bose condensates
- Phase diagrams of spin-2 Floquet spinor Bose-Einstein condensates