Effects of short-range interactions on transport through quantum point contacts: A numerical approach

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dc.creatorLassl, Andreas
dc.creatorSchlagheck, Peter
dc.creatorRichter, Klaus
dc.date2006-11-17
dc.date.accessioned2026-07-07T07:43:48Z
dc.date.available2026-07-07T07:43:48Z
dc.descriptionWe study electronic transport through a quantum point contact, where the interaction between the electrons is approximated by a contact potential. Our numerical approach is based on the non-equilibrium Green function technique which is evaluated at Hartree-Fock level. We show that this approach allows us to reproduce relevant features of the so-called "0.7 anomaly" observed in the conductance at low temperatures, including the characteristic features in recent shot noise measurements. This is consistent with a spin-splitting interpretation of the process, and indicates that the "0.7 anomaly" should also be observable in transport experiments with ultracold fermionic atoms.
dc.description12 pages, 10 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0611464
dc.identifierhttp://arxiv.org/abs/cond-mat/0611464
dc.identifierPhys. Rev. B v75, 045346 (2007)
dc.identifierdoi:10.1103/PhysRevB.75.045346
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/122972
dc.subjectMesoscale and Nanoscale Physics
dc.titleEffects of short-range interactions on transport through quantum point contacts: A numerical approach
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