1012.4167 (Moritz Hiller et al.)

Robust states of ultra-cold bosons in tilted optical lattices    [PDF]

Moritz Hiller, Hannah Venzl, Tobias Zech, Bartlomiej Oleś, Florian Mintert, Andreas Buchleitner

We identify regular structures in the globally chaotic spectra of an interacting bosonic quantum gas in tilted periodic potentials. The associated eigenstates exhibit strong localization properties on the lattice, and are dynamically robust against external perturbations.

View original: http://arxiv.org/abs/1012.4167