Abstract
We derive a general expression for the cumulant generating function (CGF) of non-Markovian quantum stochastic transport processes. The long-time limit of the CGF is determined by a single dominating pole of the resolvent of the memory kernel from which we extract the zero-frequency cumulants of the current using a recursive scheme. The finite-frequency noise is expressed not only in terms of the resolvent, but also initial system-environment correlations. As an illustrative example we consider electron transport through a dissipative double quantum dot for which we study the effects of dissipation on the zero-frequency cumulants of high orders and the finite-frequency noise.
Original language | English |
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Journal | Physical Review Letters |
Volume | 100 |
Issue number | 15 |
Pages (from-to) | 150601 |
ISSN | 0031-9007 |
DOIs | |
Publication status | Published - 2008 |
Bibliographical note
Copyright 2008 American Physical SocietyKeywords
- NOISE
- SPECTRUM