Single-electron turnstile pumping with high frequencies

Chuan Yu Lin, Wei Min Zhang

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


In this letter, we present a theoretical analysis to single-electron pumping operation in a large range of driving frequencies through the time-dependent tunneling barriers controlled by external gate voltages. We show that the single-electron turnstile works at the frequency lower than the characteristic frequency which is determined by the mean average electron tunneling rate. When the driving frequency is greater than the characteristic frequency of electron tunnelings, fractional electron pumping occurs as an effect of quantum coherence tunneling.

Original languageEnglish
Article number072105
JournalApplied Physics Letters
Issue number7
Publication statusPublished - 2011 Aug 15

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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