Quantum simulator for the hubbard model with long-range coulomb interactions using surface acoustic waves.
Phys Rev Lett
; 99(1): 016405, 2007 Jul 06.
Article
en En
| MEDLINE
| ID: mdl-17678174
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.
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MEDLINE
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En
Revista:
Phys Rev Lett
Año:
2007
Tipo del documento:
Article
País de afiliación:
Japón
Pais de publicación:
Estados Unidos