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

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Lassl, Andreas ; Schlagheck, Peter ; Richter, Klaus
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arXiv PDF (17.11.2006)
Date of publication of this fulltext: 05 Aug 2009 13:32


We 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 ...


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