2 papers
cond-mat.str-el2020
Dynamically induced doublon repulsion in the Fermi-Hubbard model probed by a single-particle density of states
V. N. Valmispild, C. Dutreix, M. Eckstein +3
We investigate the possibility to control dynamically the interactions between repulsively bound pairs of fermions (doublons) in correlated systems with off-resonant ac fields. We…
cond-mat.str-el2018
Optical control of competing exchange interactions and coherent spin-charge coupling in two-orbital Mott insulators
M. M. S. Barbeau, M. Eckstein, M. I. Katsnelson +1
In order to have a better understanding of ultrafast electrical control of exchange interactions in multi-orbital systems, we study a two-orbital Hubbard model at half filling unde…