Phys. Rev. Lett. 95, 190405 (2005) [4 pages]Coherent Collisional Spin Dynamics in Optical LatticesReceived 19 May 2005; published 3 November 2005 We report on the observation of coherent, purely collisionally driven spin dynamics of neutral atoms in an optical lattice. For high lattice depths, atom pairs confined to the same lattice site show weakly damped Rabi-type oscillations between two-particle Zeeman states of equal magnetization, induced by spin-changing collisions. Moreover, measurement of the oscillation frequency allows for precise determination of the spin-changing collisional coupling strengths, which are directly related to fundamental scattering lengths describing interatomic collisions at ultracold temperatures. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.95.190405
DOI:
10.1103/PhysRevLett.95.190405
PACS:
03.75.Lm, 03.75.Gg, 03.75.Mn, 34.50.−s
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