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Cooper Pair Tunneling in Circuits with Substantial Dissipation: The Three-Junction R-Pump for Single Cooper Pairs

In: Macroscopic Quantum Coherence and Quantum Computing

Author

Listed:
  • A. B. Zorin

    (Physikalisch-Technische Bundesanstalt)

  • S. A. Bogoslovsky

    (Physikalisch-Technische Bundesanstalt
    Moscow State University, Laboratory of Cryoelectronics)

  • S. V. Lotkhov

    (Physikalisch-Technische Bundesanstalt)

  • J. Niemeyer

    (Physikalisch-Technische Bundesanstalt)

Abstract

We propose a circuit (we call it R-pump) comprising a linear array of three smallcapacitance superconducting tunnel junctions with miniature resistors (R > R Q ≡ h/4e 2 ≅ 6.5 kΩ) attached to the ends of this array. Owing to the Coulomb blockade effect and the effect of dissipative environment on the supercurrent, this circuit enables the gate-controlled transfer of individual Cooper pairs. The first experiment on operating the R-pump is described.

Suggested Citation

  • A. B. Zorin & S. A. Bogoslovsky & S. V. Lotkhov & J. Niemeyer, 2001. "Cooper Pair Tunneling in Circuits with Substantial Dissipation: The Three-Junction R-Pump for Single Cooper Pairs," Springer Books, in: Dmitri V. Averin & Berardo Ruggiero & Paolo Silvestrini (ed.), Macroscopic Quantum Coherence and Quantum Computing, pages 147-154, Springer.
    • Handle: RePEc:spr:sprchp:978-1-4615-1245-5_15
    DOI: 10.1007/978-1-4615-1245-5_15
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