Speaker
Prof.
Giuliano Orso
(Université Paris Diderot)
Description
We investigate the formation of bound states made of
two interacting atoms moving in a one dimensional
quasi-periodic 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.
Ref: Phys. Rev. Lett. 109, 155306 (2012)
Primary author
Prof.
Giuliano Orso
(Université Paris Diderot)
