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

A. B. Zorin, S. A. Bogoslovsky, S. V. Lotkhov and J. Niemeyer
Additional contact information
A. B. Zorin: Physikalisch-Technische Bundesanstalt
S. A. Bogoslovsky: Physikalisch-Technische Bundesanstalt
S. V. Lotkhov: Physikalisch-Technische Bundesanstalt
J. Niemeyer: Physikalisch-Technische Bundesanstalt

A chapter in Macroscopic Quantum Coherence and Quantum Computing, 2001, pp 147-154 from Springer

Abstract: 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.

Keywords: Josephson tunneling; Coulomb blockade; effect of electromagnetic environment (search for similar items in EconPapers)
Date: 2001
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DOI: 10.1007/978-1-4615-1245-5_15

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