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Correlated atom pair creation in a moving 1D optical lattice

Raphael Lopes, Marie Bonneau, Josselin Ruaudel, Alain Aspect, Denis Boiron, Christoph Ira Westbrook

Published Sep 18, 2011• 0 citations
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We investigate the formation of bound states made of two interacting atoms moving in a one dimensional (1D) quasiperiodic optical lattice. We derive the quantum phase diagram for Anderson localization of both attractively and repulsively bound pairs. We calculate the pair binding energy and show analytically that its behavior as a function of the interaction strength depends crucially on the nature-extended, multifractal, localized-of the single-particle atomic states. Experimental implications of our results are discussed.