Many-particle resonances in excited states of semiconductor quantum dots

Abstract

Anderson impurity model for semiconductor quantum dot is extended to take into account both particle and hole branches of charge excitations. It is shown that in dots with even number of electrons where the Kondo effect is absent in the ground state, novel midgap exciton states emerge in the energy spectrum due to Kondo-type shake-up processes. The relevance of the model to heterostructures doped by transition metal impurities and to rare earth ions adsorbed on metallic surfaces is discussed.

9 pages, 6 ps figures

References in corpus (4)

• A Tunable Kondo Effect in Quantum Dots
• From the Kondo Regime to the Mixed-Valence Regime in a Single-Electron Transistor
• Anomalous Kondo-effect in Quantum Dot at non-zero bias
• Quantum dots with even number of electrons: Kondo effect in a finite magnetic field

Cited by in corpus (6)

• Tensor networks and the numerical renormalization group
• Absorption and Emission in quantum dots: Fermi surface effects of Anderson excitons
• Kondo excitons in self-assembled quantum dots
• Kondo effect in systems with dynamical symmetries
• Resonance Kondo Tunneling through a Double Quantum Dot at Finite Bias
• Dynamically Induced Multi-Channel Kondo Effect