# Kondo effect in coupled quantum dots: A noncrossing approximation study

@article{Aguado2003KondoEI, title={Kondo effect in coupled quantum dots: A noncrossing approximation study}, author={Ram{\'o}n Aguado and David C. Langreth}, journal={Physical Review B}, year={2003}, volume={67}, pages={245307} }

The out-of-equilibrium transport properties of a double quantum dot system in the Kondo regime are studied theoretically by means of a two-impurity Anderson Hamiltonian with interimpurity hopping. The Hamiltonian, formulated in slave-boson language, is solved by means of a generalization of the noncrossing approximation (NCA) to the present problem. We provide benchmark calculations of the predictions of the NCA for the linear and nonlinear transport properties of coupled quantum dots in the… Expand

#### 56 Citations

Shot noise in strongly correlated double quantum dots

- Physics
- 2004

We have investigated theoretically the shot noise of strongly correlated double quantum dot systems in the regime where the Kondo effect and the interdot antiferromagnetic exchange do compete. Our… Expand

Correlated electrons and transport in a quantum point contact and in a double-quantum-dot system

- Physics
- 2007

A problem of electronic correlations is considered for two specific mesoscopic systems: the quantum point contact (QPC) and the double quantum dot (2QD) system. The systems are described using a… Expand

Conductance of a double quantum dot system in the Kondo regime in the presence of inter-dot coupling and channel mixing effects

- Physics
- 2007

Electron transport through a parallel double quantum dot is theoretically studied in the Kondo regime with the use of the non-equilibrium Green function formalism based on the equation of motion… Expand

Nonequilibrium Kondo transport through a quantum dot in a magnetic field

- Physics
- 2013

We analyze the universal transport properties of a strongly interacting quantum dot in the Kondo regime when the quantum dot is placed in an external magnetic field. The quantum dot is described by… Expand

Two-impurity anderson model for the transport through two quantum dots coupled via a quantum wire

- Physics
- 2006

We study the problem of transport through two quantum dots coupled via a finite-length quantum wire. In the limit where each dot acts essentially as a localized Kondo impurity, the geometry allows us… Expand

Influence of inter-dot Coulomb repulsion and exchange interactions on conductance through double quantum dot

- Physics
- 2006

Abstract.Conductance and other physical quantities are calculated in double quantum dots (DQD) connected in series in the limit of coherent tunnelling using a Green's function technique. The… Expand

Electronic correlations in coherent transport through a two quantum dot system

- Physics
- 2004

Coherent electronic transport through a double quantum dot (2qd) system connected in a series with electrodes is studied by means of nonequilibrium Green functions and using the equation of motion… Expand

Effects of van Hove Singularities on Transport of Quantum Dot Systems in Kondo Regime

- Physics
- 2005

In the present paper, we study the effect of van Hove singularities of conduction electron on the transport of a single quantum dot system in the Kondo regime. By using both the equation-of-motion… Expand

Kondo Effect Versus Magnetic Coupling in Indirectly Coupled Double Quantum Dots

- Physics
- 2010

We theoretically investigate a device consisting of two quantum dots (QDs) side-coupled to a quantum wire which has many physical ingredients of an artificial heavy fermion system. An extra… Expand

Kondo-Dicke resonances in electronic transport through triple quantum dots

- Physics
- 2008

Electronic transport through a triple quantum dot system, with only a single dot coupled directly to external leads, is considered theoretically. The model includes Coulomb correlations in the… Expand

#### References

SHOWING 1-3 OF 3 REFERENCES

The Kondo Problem to Heavy Fermions

- Physics
- 1993

1. Models of magnetic impurities 2. Resistivity calculations and the resistance minimum 3. The Kondo problem 4. Renormalization group calculations 5. Fermi liquid theories 6. Exact solutions and the… Expand

The Physics of Instabilities in Solid State Electron Devices

- Materials Science
- 1992

Introduction. Stability. Tunnel Diodes. The Avalanche Diode. The Gunn Diode. Superconducting Junctions. SNDC Multilayer Semiconductor Structures. Thermal and Electrothermal Instabilities.… Expand