Équipe de Recherche en Physique de l'Information Quantique


Abstract = {We analyze theoretically and experimentally the electronic structure and charging diagram of three coupled lateral quantum dots filled with electrons. Using the Hubbard model and real-space exact diagonalization techniques we show that the electronic properties of this artificial molecule can be understood using a set of topological Hunds rules. These rules relate the multielectron energy levels to spin and the interdot tunneling t, and control charging energies. We map out the charging diagram for up to N=6 electrons and predict a spin-polarized phase for two holes. The theoretical charging diagram is compared with the measured charging diagram of the gated triple-dot device. {\copyright} 2007 The American Physical Society.},
Art_Number = {115301},
Author = {Korkusinski, M. and Gimenez, I.P. and Hawrylak, P. and Gaudreau, L. and Studenikin, S.A. and Sachrajda, A.S.},
Document_Type = {Article},
Journal = {Physical Review B - Condensed Matter and Materials Physics},
Number = {11},
Source = {Scopus},
Title = {Topological Hunds rules and the electronic properties of a triple lateral quantum dot molecule},
Url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33847363255&partnerID=40&md5=3c91c3cd4e0d91b0f0c4880006d7616e},
Volume = {75},
Year = {2007},
Bdsk-Url-1 = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33847363255&partnerID=40&md5=3c91c3cd4e0d91b0f0c4880006d7616e}}