Phys. Rev. Lett. 83, 1934–1937 (1999)Tunneling Dynamics and Gauge Potentials in Optical LatticesReceived 26 April 1999; published in the issue dated 6 September 1999 We study periodic well-to-well tunneling of 87Rb atoms on adiabatic potential surfaces of a 1D optical lattice. The observed dependence of the lowest-band tunneling period on the depth of the adiabatic potential can only be explained by an additional intensity-independent gauge potential predicted by Dum et al. The experimental data are in excellent agreement with our quantum Monte Carlo wave-function simulations and band structure calculations. © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.83.1934
DOI:
10.1103/PhysRevLett.83.1934
PACS:
32.80.Pj, 03.75.-b, 42.50.Vk
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