Quantum simulator for the hubbard model with long-range coulomb interactions using surface acoustic waves.
An experimental scheme for a quantum simulator of strongly correlated electrons is proposed. Our scheme employs electrons confined in a two-dimensional electron gas in a GaAs/AlGaAs heterojunction. Two surface acoustic waves are then induced in the substrate, creating a two-dimensional "egg-carton" potential. The dynamics of the electrons in this potential are described by a Hubbard model with long-range Coulomb interactions. Estimates of the Hubbard parameters suggest that observations of quantum phase transition phenomena are within experimental reach.
National Institute of Informatics, Tokyo, Japan.
Tim
T
Byrnes
Patrik
P
Recher
Na Young
NY
Kim
Shoko
S
Utsunomiya
Yoshihisa
Y
Yamamoto