Lapse of transmission phase and electron molecules in quantum dots

Abstract

The puzzling behavior of the transition phase through a quantum dot can be understood in a natural way via a formation of the electron molecule in the quantum dot. In this case the resonance tunneling takes place through the quasi-stationary (doorway) state, which emerges when the number of electrons occupying the dot reaches a certain ``critical'' value, $N_{cr}$. Our estimation of this quantity agrees with the experimental data. The dependence of $N_{cr}$ on the dot's size is predicted as well.

Slightly expanded version, PRB Rapid Communications, in press

References in corpus (9)

• Symmetry breaking and quantum correlations in finite systems: Studies of quantum dots and ultracold Bose gases and related nuclear and chemical methods
• Crossover from mesoscopic to universal phase for electron transmission in quantum dots
• Phase coherent transmission through interacting mesoscopic systems
• Towards an Explanation of the Mesoscopic Double-Slit Experiment: a new model for charging of a Quantum Dot
• Correlation Induced Inhomogeneity in Circular Quantum Dots
• Modified two-potential approach to tunneling problems
• Mesoscopic to universal crossover of transmission phase of multi-level quantum dots
• Group theoretical analysis of symmetry breaking in two-dimensional quantum dots
• Level-occupation switching of the Quantum Dot, and phase anomalies in mesoscopic interferometry

Cited by in corpus (7)

• Nonuniversal transmission phase lapses through a quantum dot: An exact-diagonalization of the many-body transport problem
• Quantum coherence and entanglement induced by the continuum between distant localized states
• Mesoscopic behavior of the transmission phase through confined correlated electronic systems
• Analyzing the measured phase in the multichannel Aharonov-Bohm interferometer
• Generalized Landauer formula for time-dependent potentials and noise-induced zero-bias dc current
• Exchange and correlation effects in the transmission phase through a few-electron quantum dot
• Decoherence and the retrieval of lost information