Effect of inelastic scattering on the average Coulomb-blockade peak height in quantum dots

2000/10/31 by C. W. J. Beenakker, Henning Schomerus, H. Schomerus +1
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Semiconductor Quantum Structures and Devices #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevb.64.033307

published as Phys.Rev.B 64, 033307 (2001) · 3 pages including 1 figure; revised following referee report

arxiv created 2001/01/30 · openalex publication_date 2001/06/13 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

The average height of the Coulomb-blockade conductance peaks for chaotic elastic scattering is known to increase by a factor of 4/3 upon breaking time-reversal symmetry. We calculate the temperature dependence of this factor in the regime where the inelastic scattering rate \ensuremathΓ_in is greater than the mean tunneling rate \ensuremathΓ_el, which itself is less than the mean level spacing \ensuremathΔ. Comparison to recent experimental data by Folk et al. (Folk, Patel, Marcus, Duru"oz, and Harris, cond-mat/0008052) demonstrates that \ensuremathΓ_in lies below \ensuremathΓ_el and hence also below \ensuremathΔ, consistent with the low-energy suppression of inelastic electron-electron scattering in quantum dots.

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