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- Title
Time Ordering and Counting Statistics.
- Authors
Bachmann, S.; Graf, G. M.; Lesovik, G. B.
- Abstract
The basic quantum mechanical relation between fluctuations of transported charge and current correlators is discussed. It is found that, as a rule, the correlators are to be time-ordered in an unusual way. Instances where the difference with the conventional ordering matters are illustrated by means of a simple scattering model. We apply the results to resolve a discrepancy concerning the third cumulant of charge transport across a tunnel junction.
- Subjects
STATISTICAL correlation; CORRELATORS; QUANTUM theory; MECHANICS (Physics); MATHEMATICAL models
- Publication
Journal of Statistical Physics, 2010, Vol 138, Issue 1-3, p333
- ISSN
0022-4715
- Publication type
Article
- DOI
10.1007/s10955-009-9885-z