Correlation-induced resonances and population switching in a quantum dot coulomb valley

Abstract

Strong correlation effects on electron transport through a spinless quantum dot are considered. When two single-particle levels in the quantum dot are degenerate, a conserved pseudospin degree of freedom appears for general tunneling matrix elements between the quantum dot and leads. Local fluctuations of the pseudospin in the quantum dot give rise to a pair of asymmetric conductance peaks near the center of a Coulomb valley. An exact relation to the population switching is provided.

Fig. 4 and some technical details removed. To appear in PRL

References in corpus (18)

• Kondo Physics in a Single Electron Transistor
• A Tunable Kondo Effect in Quantum Dots
• The Kondo Effect in the Unitary Limit
• Coulomb blockade at almost perfect transmission
• Generic transmission zeros and in-phase resonances in time-reversal symmetric single channel transport
• Towards an Explanation of the Mesoscopic Double-Slit Experiment: a new model for charging of a Quantum Dot
• Gate-controlled spin-splitting in quantum dots with ferromagnetic leads in the Kondo regime
• A novel approach to transport through correlated quantum dots
• Correlation induced resonances in transport through coupled quantum dots
• Unified description of correlations in double quantum dots
• Pseudo-spin Kondo effect versus hybridized molecular states in parallel Double Quantum Dots
• Charge oscillations in Quantum Dots: Renormalization group and Hartree method calculations
• Interference and interaction effects in multi-level quantum dots
• Nonmonotonic charge occupation in double dots
• Spin Effects and Transport in Quantum Dots with overlapping Resonances
• The Enhanced Sensitivity of the Transmission Phase of a Quantum Dot to Kondo Correlations
• Minimal realization of the Orbital Kondo effect in a Quantum Dot with two Leads
• Transmission zero in a quantum dot with strong electron-electron interaction: Perturbative conductance calculations

Cited by in corpus (15)

• Decoherence and lead induced inter-dot coupling in nonequilibrium electron transport through interacting quantum dots: A hierarchical quantum master equation approach
• The formation of nonequilibrium steady states in interacting double quantum dots: When coherences dominate the charge distribution
• Anderson Orthogonality in the Dynamics After a Local Quantum Quench
• Dynamics of coherences in the interacting double-dot Aharonov-Bohm interferometer: Exact numerical simulations
• Fano resonance in a two-level quantum dot side-coupled to leads
• Population switching and charge sensing in quantum dots: A case for a quantum phase transition
• A diagrammatic description of the equations of motion, current, and noise within the second-order von Neumann approach
• Transmission phase of a quantum dot: Testing the role of population switching
• Canyon of Current Suppression in an interacting two-level Quantum Dot
• Majorana molecules and their spectral fingerprints
• A quantum criticality perspective on the charging of narrow quantum-dot levels
• Entanglement entropy and quantum phase transitions in quantum dots coupled to Luttinger liquid wires
• Quantum criticality and non-Fermi-liquid behavior in a two-level two-lead quantum dot
• Metastability and quantum coherence-assisted sensing in interacting parallel quantum dots
• The Functional Renormalization Group for Zero-Dimensional Quantum Systems in and out of Equilibrium