IFLP   13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Invasive probe effects in four terminal resistance of a quantum wire with an impurity
Autor/es:
H. AITA; L. ARRACHEA; C. NAÓN
Lugar:
Trieste
Reunión:
Workshop; Strongly Correlated Electrons; 2012
Institución organizadora:
International Centre of Theoretical Physics
Resumen:
 We have investigated the behaviour of the four-terminal resistance R_{4pt} in an interacting quantum wire in the presence of a back-scattering impurity. In particular, we focused on the effects of the invasiveness of the probes, going further than the leading order in pertubation theory. Analysis of the results are discussed, concerning the possibility of observing a negative 4t-resistance, with emphasis on the role of the e-e interactions.
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