INVESTIGADORES
GRANDI Nicolas Esteban
congresos y reuniones científicas
Título:
RESULTADOS PARA SISTEMAS HALL CUÁNTICOS A PARTIR DE LA TEORÍA DE CHERN-SIMONS NO CONMUTATIVA
Autor/es:
N. GRANDI
Lugar:
La Plata
Reunión:
Encuentro; XVII Meeting of the Strings@ar Network; 2006
Institución organizadora:
red Strings@ar
Resumen:
Experiments on tunneling into fractional quantum Hall droplets systematically found tunneling exponents smaller than those predicted by the ordinary chiral Luttinger liquid theory. In this note, by considering the effects of a smooth boundary, we propose a modification of the theory that predicts a reduced exponent, in qualitative agreement with experiments. Such modification consists on a self-interaction cubic term, containing higher derivatives of the chiral boson field, that provides a non-universal one loop correction to the propagator.
