Back to Search Start Over

Anderson localization of pairs in bichromatic optical lattices

Authors :
Dufour, Gabriel
Orso, Giuliano
Source :
Phys. Rev. Lett. 109, 155306 (2012)
Publication Year :
2012

Abstract

We investigate the formation of bound states made of two interacting atoms moving in a one dimensional (1D) 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, multi-fractal, localized- of the single-particle atomic states. Experimental implications of our results are discussed.<br />Comment: final revised version with more explanations, 4 pages, 3 figures

Subjects

Subjects :
Condensed Matter - Quantum Gases

Details

Database :
arXiv
Journal :
Phys. Rev. Lett. 109, 155306 (2012)
Publication Type :
Report
Accession number :
edsarx.1206.0121
Document Type :
Working Paper
Full Text :
https://doi.org/10.1103/PhysRevLett.109.155306