Dicke-Josephson effect in a cross-typed triple-quantum-dot junction
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- 作者：Xiao-Qi Wang ; Guang-Yu Yi ; Wei-Jiang Gong ; gwj@mail.neu.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：A. Quantum dot ; B. Dicke effect ; D. Josephson current
- 刊名：Solid State Communications
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：247
- 期：Complete
- 页码：12-16
- 全文大小：804 K
文摘
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We study Dicke-Josephson effect in a S/TQD/S junction with central QD coupled to superconductors.
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In the noninteracting case, Dicke effect induces a subpeak in the supercurrent spectrum.
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When intradot interactions are considered, Dicke effect suppresses the pi-phase current.
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Dicke effect can reverse the current direction following the increase of Coulomb strength.
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The Dicke-Josephson effect should be an important part in describing the Josephson effect.