Coherent cooper-pair tunneling in a superconducting single electron transistor

Yuichi Harada, Hideaki Takayanagi, Arkadi A. Odintsov

研究成果: ジャーナルへの寄稿記事

抄録

We investigate how coherent Cooper-pair tunneling depends on the competition between Josephson coupling energy Ej and charging energy Eq. Measurements were performed on a circuit consisting of two dc-SQUIDs in series, with a gate capacitively coupled to the central island. As the Ej/Ec ratio decreased, coherent Cooper pairs tended to tunnel incoherently. Measured data show good agreement with theoretical calculations in strong and weak coupling limits. This experiment implies the manifestation of Heisenberg's uncertainty principle in a superconductor.

元の言語英語
ページ(範囲)4572-4574
ページ数3
ジャーナルJapanese Journal of Applied Physics
34
発行部数8
DOI
出版物ステータス出版済み - 1995
外部発表Yes

Fingerprint

Single electron transistors
Electric power measurement
single electron transistors
SQUIDs
Superconducting materials
Tunnels
Networks (circuits)
charging
tunnels
Experiments
energy
Uncertainty

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

これを引用

Coherent cooper-pair tunneling in a superconducting single electron transistor. / Harada, Yuichi; Takayanagi, Hideaki; Odintsov, Arkadi A.

:: Japanese Journal of Applied Physics, 巻 34, 番号 8, 1995, p. 4572-4574.

研究成果: ジャーナルへの寄稿記事

Harada, Yuichi ; Takayanagi, Hideaki ; Odintsov, Arkadi A. / Coherent cooper-pair tunneling in a superconducting single electron transistor. :: Japanese Journal of Applied Physics. 1995 ; 巻 34, 番号 8. pp. 4572-4574.
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