Interaction effects in Aharonov-Bohm-Kondo Rings
arXiv:1309.0554 · doi:10.1103/PhysRevB.88.245104
Abstract
We study the conductance through an Aharonov-Bohm ring, containing a quantum dot in the Kondo regime in one arm, at finite temperature and arbitrary electronic density. We develop a general method for this calculation based on changing basis to the screening and non-screening channels. We show that an unusual term appears in the conductance, involving the connected 4-point Green's function of the conduction electrons. However, this term and terms quadratic in the -matrix can be eliminated at sufficiently low temperatures, leading to an expression for the conductance linear in the Kondo T-matrix. Explicit results are given for temperatures high compared to the Kondo temperature.
References in corpus (11)
- Kondo effect in quantum dots
- Friedel oscillations and the Kondo screening cloud
- Theory of inelastic scattering from magnetic impurities
- Universal dephasing rate due to diluted Kondo impurities
- Resonant tunneling and Fano resonance in quantum dots with electron-phonon interaction
- Theory of inelastic scattering from quantum impurities
- Tunable pseudogap Kondo effect and quantum phase transitions in Aharonov-Bohm interferometers
- The Influence of Interference on the Kondo Effect in a Quantum Dot
- Transport through a multiply connected interacting meso-system using the Keldysh formalism
- Scaling analysis of Kondo screening cloud in a mesoscopic ring with an embedded quantum dot
- Transmission phase shifts of Kondo impurities
Cited by in corpus (4)
- Conductance and Kondo Interference beyond Proportional Coupling
- Fano-Kondo resonance versus Kondo plateau in an Aharonov-Bohm ring with an embedded quantum dot
- Conductance of closed and open long Aharonov-Bohm-Kondo rings
- Antisymmetric Spin-Orbit Coupling Effect on Kondo-Induced Electric Polarization in a Triangular Triple Quantum Dot