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

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

2000-10-25

arxiv.org/abs/cond-mat/0010387v2

Phys.Rev.B 64, 033307 (2001)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 pages including 1 figure; revised following referee report

Scientific paper

10.1103/PhysRevB.64.033307

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 that the inelastic scattering rate Gamma_in is greater than the mean tunneling rate Gamma_el, which itself is less than the mean level spacing Delta. Comparison with recent experimental data by Folk et al. (cond-mat/0008052) demonstrates that Gamma_in lies below Gamma_el and hence also below Delta, consistent with the low-energy suppression of inelastic electron-electron scattering in quantum dots.

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