2010/12/21 by T. Kubo, Toshihiro Kubo, Yasuhiro Tokura +2
Physics and Astronomy · #Antiferromagnetism #Computer science #Condensed matter physics #Coupling (piping) #Electron #Image (mathematics) #Kondo effect #Materials science #Noise (video) #Optics #Physics #Physics of Superconductivity and Magnetism #Quantum #Quantum and electron transport phenomena #Quantum dot #Quantum mechanics #Quantum noise #Shot noise #Spin (aerodynamics) #Topological Materials and Phenomena #cond-mat.mes-hall #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.83.115310
published as Physical Review B 83, 115310 (2011) · 11 pages, 5 figures, accepted for publication in Physical Review B
arxiv created 2010/12/21 · openalex publication_date 2011/03/08 · arxiv updated 2015/05/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Spin and orbital Kondo effects and the related shot noise for a laterally coupled double quantum dot are studied taking account of coherent indirect coupling via a reservoir. We calculate the linear conductance and shot noise for various charge states to distinguish between the spin and the orbital Kondo effects. We find that a novel antiferromagnetic exchange coupling can be generated by the coherent indirect coupling, and it works to suppress the spin Kondo effect when each quantum dot holds just one electron. We also show that we can capture the feature of the pseudospin Kondo effect from the shot noise measurement.