The FI signals of dense Rb atoms were observed, and the dependence of the decay rate on B0, P and θ was obtained. Results were quantitatively interpreted as the intrinsic dynamics of highly polarized multilevel atoms under the influence of the spin-exchange interaction. The time evolution of atomic coherence was obtained by numerically integrating the nonlinear Liouville equation. The cross section of the spin-exchange collision was measured to be 3.5 × 10-18 m-2 by fitting the calculated dependence of the linewidth on B0, P, θ, and NRB.
|Journal||Physical Review A - Atomic, Molecular, and Optical Physics|
|Issue number||3 A|
|Publication status||Published - 2002 Mar 1|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics