Coherent superconducting quantum pump

F. Hoehne, Y.A. Pashkin, O.V. Astafiev, M. Möttönen, J.P. Pekola, JawShen Tsai

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)
147 Downloads (Pure)


We demonstrate nonadiabatic charge pumping utilizing a sequence of coherent oscillations between a superconducting island and two reservoirs. The pumping rate for each elementary cycle is limited by the coupling between the island and the reservoirs given by the Josephson energy. Our experimental and theoretical studies show that relaxation can be employed to reset the pump in order to avoid accumulation of errors due to nonideal control pulses. Thus our results demonstrate the effects of nonadiabatic quantum pumping and dissipation.
Original languageEnglish
Article number140504
Pages (from-to)1-5
Number of pages5
JournalPhysical Review B
Issue number14
Publication statusPublished - 2012
MoE publication typeA1 Journal article-refereed


  • quantum pump
  • superconducting


Dive into the research topics of 'Coherent superconducting quantum pump'. Together they form a unique fingerprint.

Cite this