Orbital fluctuations and strong correlations in quantum dots
arXiv:cond-mat/0505767 · doi:10.1080/14786430500469069
Abstract
In this lecture note we focus our attention to quantum dot systems where exotic strongly correlated behavior develops due to the presence of orbital or charge degrees of freedom. After giving a concise overview of the theory of transport and Kondo effect through a single electron transistor, we discuss how SU(4) Kondo effect develops in dots having orbitally degenerate states and in double dot systems, and then study the singlet-triplet transition in lateral quantum dots. Charge fluctuations and Matveev's mapping to the two-channel Kondo model in the vicinity of charge degeneracy point are also discussed.
Lecture note to appear in Philosophical Magazine
References in corpus (9)
- Orbital Kondo effect in carbon nanotubes
- Regular and Singular Fermi Liquid fixed points in quantum impurity models
- Coulomb blockade of a noisy metallic box: A realization of Bose-Fermi Kondo models
- Singlet-Triplet Transition in lateral Quantum Dots: A Numerical Renormalization Group Study
- Singlet-triplet transition in a lateral quantum dot
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Cited by in corpus (14)
- Quantum transport in carbon nanotubes
- Magnetic Field Probing of an SU(4) Kondo Resonance in a Single Atom Transistor
- New Numerical Results Indicate a Half-Filling SU(4) Kondo State in Carbon Nanotubes
- Tunable Kondo effect in a single donor atom
- Spin polarized current and shot noise in carbon nanotube quantum dot in the Kondo regime
- Orbital Kondo spectroscopy in a double quantum dot system
- Minimal realization of the Orbital Kondo effect in a Quantum Dot with two Leads
- Analysis of low energy response and possible emergent SU(4) Kondo state in a double quantum dot
- Restoring the SU(4) Kondo regime in a double quantum dot system
- Two-stage three-channel Kondo physics for an FePc molecule on the Au(111) surface
- Ground State and Excitations of Quantum Dots with "Magnetic Impurities"
- Transport and Strong-Correlation Phenomena in Carbon Nanotube Quantum Dots in a Magnetic Field
- Intra- and inter-shell Kondo effects in carbon nanotube quantum dots
- Identifying an effective model for the two-stage-Kondo regime: Numerical renormalization group results