Statistics of Coulomb blockade peak spacings for a partially open dot

Abstract

We show that randomness of the electron wave functions in a quantum dot contributes to the fluctuations of the positions of the conductance peaks. This contribution grows with the conductance of the junctions connecting the dot to the leads. It becomes comparable with the fluctuations coming from the randomness of the single particle spectrum in the dot while the Coulomb blockade peaks are still well-defined. In addition, the fluctuations of the peak spacings are correlated with the fluctuations of the conductance peak heights.

13 pages, 1 figure

References in corpus (9)

• Statistics of Coulomb Blockade Peak Spacings
• Mesoscopic charge quantization
• Correlations between Ground and Excited State Spectra of a Quantum Dot
• Statistics of conductance oscillations of a quantum dot in the Coulomb-blockade regime
• Statistics of the Coulomb blockade peak spacings of a silicon quantum dot
• Changing the Electronic Spectrum of a Quantum Dot by Adding Electrons
• Mesoscopic Fluctuations of Elastic Cotunneling in Coulomb Blockaded Quantum Dots
• Coulomb Blockade Fluctuations in Strongly Coupled Quantum Dots
• Density Modulations and Addition Spectra of Interacting Electrons in Disordered Quantum Dots

Cited by in corpus (10)

• The Statistical Theory of Quantum Dots
• Quantum Effects in Coulomb Blockade
• Kondo effect induced by a magnetic field
• Rate equations for Coulomb blockade with ferromagnetic leads
• Spin Effects and Transport in Quantum Dots with overlapping Resonances
• Spin and e-e interactions in quantum dots: Leading order corrections to universality and temperature effects
• Level-occupation switching of the Quantum Dot, and phase anomalies in mesoscopic interferometry
• Kondo temperature of a quantum dot
• Coulomb Blockade Peak Spacings: Interplay of Spin and Dot-Lead Coupling
• Quantum Dots: Coulomb Blockade, Mesoscopic Fluctuations, and Qubit Decoherence