Tunable pseudogap Kondo effect and quantum phase transitions in Aharonov-Bohm interferometers

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dc.creatorda Silva, Luis G. G. V. Dias
dc.creatorSandler, Nancy
dc.creatorSimon, Pascal
dc.creatorIngersent, Kevin
dc.creatorUlloa, Sergio E.
dc.date2009-01-16
dc.date2009-04-27
dc.date.accessioned2026-07-07T13:08:19Z
dc.date.available2026-07-07T13:08:19Z
dc.descriptionWe study two quantum dots embedded in the arms of an Aharonov-Bohm ring threaded by a magnetic flux. The system can be described by an effective one-impurity Anderson model with an energy- and flux-dependent density of states. For specific values of the flux, this density of states vanishes at the Fermi energy, yielding a controlled realization of the pseudogap Kondo effect. The conductance and transmission phase shifts reflect a nontrivial interplay between wave interference and interactions, providing clear signatures of quantum phase transitions between Kondo and non-Kondo ground states.
dc.descriptionPublished version
dc.identifierhttps://arxiv.org/abs/0901.2475
dc.identifierhttp://arxiv.org/abs/0901.2475
dc.identifierPhys. Rev. Lett. 102 166806 (2009)
dc.identifierdoi:10.1103/PhysRevLett.102.166806
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/228381
dc.subjectMesoscale and Nanoscale Physics
dc.subjectStrongly Correlated Electrons
dc.titleTunable pseudogap Kondo effect and quantum phase transitions in Aharonov-Bohm interferometers
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