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Charge transport through ultrasmall single and double Josephson junctions coupled to resonant modes of the electromagnetic environment

Research output: Contribution to journalJournal article

Published

  • Yuri Pashkin
  • H. Im
  • J. Leppaekangas
  • T. F. Li
  • O. Astafiev
  • A. A. Abdumalikov
  • E. Thuneberg
  • J. S. Tsai
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Journal publication date20/01/2011
JournalPhysical Review B
Journal number2
Volume83
Number of pages4
Pages-
Original languageEnglish

Abstract

We have investigated charge transport in ultrasmall superconducting single and double Josephson junctions coupled to resonant modes of the electromagnetic environment. We observe pronounced current peaks in the transport characteristics of both types of devices and attribute them to the process involving simultaneous tunneling of Cooper pairs and photon emission into the resonant modes. The experimental data are well reproduced with the theoretical models.