Cooper-pair tunneling in small junctions with tunable Josephson coupling

Yuichi Harada, Hideaki Takayanagi, Arkadi A. Odintsov

研究成果: ジャーナルへの寄稿記事

11 引用 (Scopus)

抄録

We investigate Cooper-pair tunneling in a circuit consisting of two dc-superconducting quantum interference devices in series, with a gate capacitively coupled to the central island. Measurements cover a wide range of values of the ratio between Josephson coupling energy (Formula presented) and charging energy (Formula presented). The (Formula presented) ratio dependence of the supercurrent is well described by the orthodox theory provided that strong fluctuations of the Josephson phase due to the electromagnetic environment are taken into account. Our data can be interpreted in terms of squeezing of the charge fluctuations with decreasing (Formula presented) ratio.

元の言語英語
ページ(範囲)6608-6613
ページ数6
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
54
発行部数9
DOI
出版物ステータス出版済み - 1 1 1996
外部発表Yes

Fingerprint

SQUIDs
Networks (circuits)
compressing
charging
electromagnetism
interference
energy

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

これを引用

Cooper-pair tunneling in small junctions with tunable Josephson coupling. / Harada, Yuichi; Takayanagi, Hideaki; Odintsov, Arkadi A.

:: Physical Review B - Condensed Matter and Materials Physics, 巻 54, 番号 9, 01.01.1996, p. 6608-6613.

研究成果: ジャーナルへの寄稿記事

@article{abbe3992d54343b4bd48fc98de201557,
title = "Cooper-pair tunneling in small junctions with tunable Josephson coupling",
abstract = "We investigate Cooper-pair tunneling in a circuit consisting of two dc-superconducting quantum interference devices in series, with a gate capacitively coupled to the central island. Measurements cover a wide range of values of the ratio between Josephson coupling energy (Formula presented) and charging energy (Formula presented). The (Formula presented) ratio dependence of the supercurrent is well described by the orthodox theory provided that strong fluctuations of the Josephson phase due to the electromagnetic environment are taken into account. Our data can be interpreted in terms of squeezing of the charge fluctuations with decreasing (Formula presented) ratio.",
author = "Yuichi Harada and Hideaki Takayanagi and Odintsov, {Arkadi A.}",
year = "1996",
month = "1",
day = "1",
doi = "10.1103/PhysRevB.54.6608",
language = "English",
volume = "54",
pages = "6608--6613",
journal = "Physical Review B - Condensed Matter and Materials Physics",
issn = "1098-0121",
publisher = "American Physical Society",
number = "9",

}

TY - JOUR

T1 - Cooper-pair tunneling in small junctions with tunable Josephson coupling

AU - Harada, Yuichi

AU - Takayanagi, Hideaki

AU - Odintsov, Arkadi A.

PY - 1996/1/1

Y1 - 1996/1/1

N2 - We investigate Cooper-pair tunneling in a circuit consisting of two dc-superconducting quantum interference devices in series, with a gate capacitively coupled to the central island. Measurements cover a wide range of values of the ratio between Josephson coupling energy (Formula presented) and charging energy (Formula presented). The (Formula presented) ratio dependence of the supercurrent is well described by the orthodox theory provided that strong fluctuations of the Josephson phase due to the electromagnetic environment are taken into account. Our data can be interpreted in terms of squeezing of the charge fluctuations with decreasing (Formula presented) ratio.

AB - We investigate Cooper-pair tunneling in a circuit consisting of two dc-superconducting quantum interference devices in series, with a gate capacitively coupled to the central island. Measurements cover a wide range of values of the ratio between Josephson coupling energy (Formula presented) and charging energy (Formula presented). The (Formula presented) ratio dependence of the supercurrent is well described by the orthodox theory provided that strong fluctuations of the Josephson phase due to the electromagnetic environment are taken into account. Our data can be interpreted in terms of squeezing of the charge fluctuations with decreasing (Formula presented) ratio.

UR - http://www.scopus.com/inward/record.url?scp=0001078171&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0001078171&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.54.6608

DO - 10.1103/PhysRevB.54.6608

M3 - Article

VL - 54

SP - 6608

EP - 6613

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

SN - 1098-0121

IS - 9

ER -