Observation of nonlocal Josephson effect on double InAs nanowires

Sadashige Matsuo; Joon Sue Lee; Chien-Yuan Chang; Yosuke Sato; Kento Ueda; Christopher J. Palmstrøm; Seigo Tarucha

doi:10.1038/s42005-022-00994-0

Observation of nonlocal Josephson effect on double InAs nanowires

Mesoscale and Nanoscale Physics 2023-09-25 v1

Authors: Sadashige Matsuo , Joon Sue Lee , Chien-Yuan Chang , Yosuke Sato , Kento Ueda , Christopher J. Palmstrøm , Seigo Tarucha

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Abstract

Short-range coherent coupling of two Josephson junctions (JJs) are predicted to generate a supercurrent in one JJ nonlocally modulated by the phase difference in the other. We report on observation of the nonlocal Josephson effect on double InAs nanowires as experimental evidence of the coherent coupling. We measured one JJ sharing one superconducting electrode with the other JJ and observed switching current oscillation as a control of the nonlocal phase difference. Our result is an important step toward engineering of novel superconducting phenomena with the short-range coherent coupling.

Keywords

nonlocal josephson effect inass nanowires josephson junctions coherent coupling supercurrent switching current

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@article{arxiv.2112.12960,
  title  = {Observation of nonlocal Josephson effect on double InAs nanowires},
  author = {Sadashige Matsuo and Joon Sue Lee and Chien-Yuan Chang and Yosuke Sato and Kento Ueda and Christopher J. Palmstrøm and Seigo Tarucha},
  journal= {arXiv preprint arXiv:2112.12960},
  year   = {2023}
}

Observation of nonlocal Josephson effect on double InAs nanowires

Abstract

Keywords

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