Coulomb effects on the transmittance of open quantum dots in a tight-binding model
Abstract
A quantum-mechanical calculation of conductance in an open quantum dot is performed in the Landauer-Büttiker formalism using a tight binding Hamiltonian with direct Coulomb interaction. The charge distribution in the dot is calculated self-consistently as function of a gate potential, for various dot-leads couplings. The interaction is active only inside the dot, but not in the leads, its strength being an input parameter. Our calculations are complementary to the master-equation approach, go beyond the "orthodox theory", and account for the size, tunneling, and interaction effects in quantum dots.
- Publication:
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arXiv e-prints
- Pub Date:
- August 1999
- DOI:
- 10.48550/arXiv.cond-mat/9908399
- arXiv:
- arXiv:cond-mat/9908399
- Bibcode:
- 1999cond.mat..8399A
- Keywords:
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- Condensed Matter - Mesoscopic Systems and Quantum Hall Effect
- E-Print:
- 5 pages, 2 figures, to appear in Annalen der Physik (Leipzig)