Nonlinear Transport through Coupled Double Quantum Dot Systems

Abstract

We investigate sequential tunneling transport through a semiconductor double quantum dot structure by combining a simple microscopic quantum confinement model with a Mott-Hubbard type correlation model. We calculate nonperturbatively the evolution of the Coulomb blockade oscillations as a function of the interdot barrier conductance, obtaining good qualitative agreement with the experimental data over the whole tunneling regime from the weak-coupling individual dot to the strong-coupling coherent double-dot molecular system.

10 pages, 5 figures

References in corpus (3)

• Collective Coulomb Blockade in an Array of Quantum Dots: A Mott-Hubbard Approach
• Relation between Barrier Conductance and Coulomb Blockade Peak Splitting for Tunnel-Coupled Quantum Dots
• TUNNELING SPECTROSCOPY OF QUANTUM CHARGE FLUCTUATIONS IN THE COULOMB BLOCKADE

Cited by in corpus (9)

• Coherent and Collective Quantum Optical Effects in Mesoscopic Systems
• Hilbert space structure of a solid state quantum computer: two-electron states of a double quantum dot artificial molecule
• Electronic correlations in transport through coupled quantum dots
• Flat-band ferromagnetism in quantum dot superlattices
• Quantum phases in artificial molecules
• Multiple quantum phases in artificial double-dot molecules
• Coherent Resonant Tunneling Through an Artificial Molecule
• Nonthermal broadening in the conductance of double quantum dot structures
• Correlation and symmetry effects in transport through an artificial molecule