Tunable Tsallis distributions in dissipative optical lattices

Douglas, P.; Bergamini, S. and Renzoni, F. (2006). Tunable Tsallis distributions in dissipative optical lattices. Physical Review Letters, 96(11) 110601.1-110601.4.

DOI: https://doi.org/10.1103/PhysRevLett.96.110601


We demonstrated experimentally that the momentum distribution of cold atoms in dissipative optical lattices is a Tsallis distribution. The parameters of the distribution can be continuously varied by changing the parameters of the optical potential. In particular, by changing the depth of the optical lattice, it is possible to change the momentum distribution from Gaussian, at deep potentials, to a power-law tail distribution at shallow optical potentials.

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