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Longitudinal Spin Waves in a Dilute Bose Gas



J E. Williams, T Nikuni, Charles W. Clark


We present a kinetic theory for a dilute noncondensed Bose gas of two-level atoms that predicts the transient spin segregation observed in a recent experiment. The underlying mechanism driving spin currents in the gas is due to a mean-field effect arising from the quantum interference between the direct and exchange scattering of atoms in different spin states. We numerically solve the spin Boltzmann equation, using a one dimensional model, and find excellent agreement with experimental data.
Physical Review Letters
No. 23


boltzmann equation, hydrodynamics, interferometry, laser cooling, ramsey fringes, rubidium, spin waves


Williams, J. , Nikuni, T. and Clark, C. (2002), Longitudinal Spin Waves in a Dilute Bose Gas, Physical Review Letters (Accessed February 22, 2024)
Created June 1, 2002, Updated June 2, 2021