Quantum synchronization effects in intrinsic Josephson junctions

M. Machida, T. Kano, S. Yamada, M. Okumura, T. Imamura, T. Koyama

研究成果: Article査読

14 被引用数 (Scopus)

抄録

We investigate quantum dynamics of the superconducting phase in intrinsic Josephson junctions of layered high-Tc superconductors motivated by a recent experimental observation for the switching rate enhancement in the low temperature quantum regime. We pay attention to only the capacitive coupling between neighboring junctions and perform large-scale simulations for the Schrödinger equation derived from the Hamiltonian considering the capacitive coupling alone. The simulation focuses on an issue whether the switching of a junction induces those of the other junctions or not. The results reveal that the superconducting phase dynamics show synchronous behavior with increasing the quantum character, e.g., decreasing the junction plane area and effectively the temperature. This is qualitatively consistent with the experimental result.

本文言語English
ページ(範囲)689-694
ページ数6
ジャーナルPhysica C: Superconductivity and its applications
468
7-10
DOI
出版ステータスPublished - 2008 4 1

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • エネルギー工学および電力技術
  • 電子工学および電気工学

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