Analysis of universality in transient dynamics of coherent electronic transport. Issue 6 (5th December 2016)

• Record Type: Journal Article
• Authors: Seoane Souto, R.; Martín‐Rodero, A.; Levy Yeyati, A.
• Other Names: Keefe Peter D. guestEditor.; Nieuwenhuizen Theo M. guestEditor.; Špička Václav guestEditor.
• Is Part Of: Fortschritte der Physik. Volume 65:Issue 6/7/8(2017)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2016-12-05
• Subjects: Electronic transport in mesoscopic systems -- full counting statistics -- Time dependent evolution -- universal transport features; Physics -- Periodicals; 530.05
• DOI: 10.1002/prop.201600062
• Languages: English
• ISSNs: 0015-8208

Abstract

Abstract : We analyze the time‐dependent full‐counting statistics of charges transmitted through a quantum dot in the coherent regime. The generating function for the time‐dependent charge transfer statistics is evaluated numerically by discretizing the Keldysh time contour, which allows us to compute the higher order charge and current cumulants. We also develop an analytic expression for all order cumulants at any time given as a function of the zeros of the generating function, finding that the short time universality is due to the presence of a dominant single zero. The robustness of the universal features at short times is studied in both the sequential and coherent regimes.