Nonuniversal transmission phase lapses through a quantum dot: An exact-diagonalization of the many-body transport problem

Abstract

Systematic trends of nonuniversal behavior of electron transmission phases through a quantum dot, with no phase lapse for the transition N=1 -> N=2 and a lapse of pi for the N=2 -> N=3 transition, are predicted, in agreement with experiments, from many-body transport calculations involving exact diagonalization of the dot Hamiltonian. The results favor shape anisotropy of the dot and strong e-e repulsion with consequent electron localization, showing dependence on spin configurations and the participation of excited doorway transmission channels.

Published version. REVTEX4. 4 pages with 3 color figures. For related papers, see http://www.prism.gatech.edu/~ph274cy/

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Cited by in corpus (6)

• Super-Radiant Dynamics, Doorways, and Resonances in Nuclei and Other Open Mesoscopic Systems
• Transport properties of quantum dots in the Wigner molecule regime
• Molecular formations and spectra due to electron correlations in three-electron hybrid double-well qubits
• Analyzing the measured phase in the multichannel Aharonov-Bohm interferometer
• Exchange and correlation effects in the transmission phase through a few-electron quantum dot
• Critical analysis of a variational method used to describe the molecular electron transport