Transport theory of coupled quantum dots based on auxiliary operator method

Abstract

We formulate the theory of electron transport through coupled-quantum dots by extending the auxiliary operator representation. By using the generating functional technique, we derive the exact expressions for currents, dot-occupation numbers and spin correlations, and examine them based on the non-equilibrium Green's function method under the non-crossing approximation (NCA). Our formulation generalizes the previous NCA approaches by allowing full occupation numbers with a finite Coulomb repulsion.

16pages, 5 figures

References in corpus (3)

• Driven coherent oscillations of a single electron spin in a quantum dot
• Pauli spin blockade in weakly coupled quantum dots
• Kondo effect in double quantum dots with inter-dot repulsion

Cited by in corpus (10)

• Green's function methods for single molecule junctions
• Photonics and Spectroscopy in Nanojunctions: A Theoretical Insight
• Nuclear dynamics at molecule-metal interfaces: A pseudoparticle perspective
• Auxiliary master equation for nonequilibrium dual-fermion approach
• Nonequilibrium diagrammatic technique for Hubbard Green functions
• Optical spectroscopy of molecular junctions: Nonequilibrium Green's functions perspective
• Simulation of optical response functions in molecular junctions
• Quantum Transport With Two Interacting Conduction Channels
• A non-equilibrium equation-of-motion approach to quantum transport utilizing projection operators
• On optical spectroscopy of molecular junctions