Counting statistics in multiple path geometries and the fluctuations of the integrated current in a quantum stirring device

Maya Chuchem, Doron Cohen

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The amount Q of particles that are transported via a path of motion is characterized by its expectation value 〈Q〉 and by its variance Var(Q). We analyze what happens if a particle has two optional paths available to get from one site to another site, and in particular what is Var(Q) for the current which is induced in a quantum stirring device. It turns out that coherent splitting and the stirring effect are intimately related and cannot be understood within the framework of the prevailing probabilistic theory.

Original languageEnglish
Article number075302
JournalJournal of Physics A: Mathematical and Theoretical
Volume41
Issue number7
DOIs
StatePublished - 22 Feb 2008

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