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Distribution of Parametric Conductance Derivatives of a Quantum Dot

Published inPhysical review letters, vol. 79, no. 5, p. 913-916
Publication date1997
Abstract

The conductance G of a quantum dot with single-mode ballistic point contacts depends sensitively on external parameters X, such as gate voltage and magnetic field. We calculate the joint distribution of G and dG/dX by relating it to the distribution of the Wigner-Smith time-delay matrix of a chaotic system. The distribution of dG/dX has a singularity at zero and algebraic tails. While G and dG/dX are correlated, the ratio of dG/dX and

Citation (ISO format)
BROUWER, P.W. et al. Distribution of Parametric Conductance Derivatives of a Quantum Dot. In: Physical review letters, 1997, vol. 79, n° 5, p. 913–916. doi: 10.1103/PhysRevLett.79.913
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ISSN of the journal0031-9007
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