Elastic Multi-Body Interactions on a Lattice

D. S. Petrov 1

Physical Review A, American Physical Society, 2014, 90, pp.021601

We show that by coupling two hyperfine states of an atom in an optical lattice one can independently control two-, three-, and four-body on-site interactions in a non-perturbative manner. In particular, under typical conditions of current experiments one can have a purely three- or four-body interacting gas of $^{39}$K atoms characterized by on-site interaction shifts of several 100Hz.

  • 1. LPTMS - Laboratoire de Physique Théorique et Modèles Statistiques