Quantum pumping: The charge transported due to a translation of a scatterer

Doron Cohen, Tsampikos Kottos, Holger Schanz

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


The amount of charge that is pushed by a moving scatterer is dQ = -GdX, where dX is the displacement of the scatterer. The question is: what is G?. Does it depend on the transmission g 0 of the scatterer? Does the answer depend on whether the system is open (with leads attached to reservoirs) or closed? In the latter case what are the implications of having "quantum chaos" and/or coupling to the environment? The answers to these questions illuminate some fundamental aspects of the theory of quantum pumping. For the analysis we take a network (graph) as a model system, and use the Kubo formula approach.

Original languageEnglish
Article number035202
JournalPhysical Review E
Issue number3
StatePublished - 1 Mar 2005

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics


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