Anomalous Josephson effect in semiconducting nanowires as a signature of the topologically nontrivial phase

Konstantin N. Nesterov; Manuel Houzet; Julia S. Meyer

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Anomalous Josephson effect in semiconducting nanowires as a signature of the topologically nontrivial phase

机译：半导体纳米线中的异常约瑟夫森效应，作为拓扑无关紧要的阶段的标志

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We study Josephson junctions made of semiconducting nanowires with Rashba spin-orbit coupling, where superconducting correlations are induced by the proximity effect. In the presence of a suitably directed magnetic field, the system displays the anomalous Josephson effect: a nonzero supercurrent in the absence of a phase bias between two superconductors. We show that this anomalous current can be increased significantly by tuning the nanowire into the helical regime. In particular, in a short junction, a large anomalous current is a signature for topologically nontrivial superconductivity in the nanowire.

机译：我们研究由具有Rashba自旋轨道耦合的半导体纳米线制成的约瑟夫逊结，其中超导相关性是由邻近效应引起的。在存在适当定向磁场的情况下，系统显示异常的约瑟夫森效应：两个超导体之间不存在相位偏置的非零超电流。我们表明，可以通过将纳米线调谐到螺旋状态来显着增加这种异常电流。特别地，在短结中，大的异常电流是纳米线中拓扑上不平凡的超导性的标志。

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《Physical review》 |2016年第17期|174502.1-174502.9|共9页
作者
Konstantin N. Nesterov; Manuel Houzet; Julia S. Meyer;
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Univ. Grenoble Alpes, INAC-PHELIQS, F-38000, Grenoble, France and CEA, INAC-PHELIQS, F-38000, Grenoble, France;

Univ. Grenoble Alpes, INAC-PHELIQS, F-38000, Grenoble, France and CEA, INAC-PHELIQS, F-38000, Grenoble, France;

Univ. Grenoble Alpes, INAC-PHELIQS, F-38000, Grenoble, France and CEA, INAC-PHELIQS, F-38000, Grenoble, France;

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1. Anomalous Josephson effect in semiconducting nanowires as a signature of the topologically nontrivial phase [J] . Nesterov Konstantin N., Houzet Manuel, Meyer Julia S. Physical review, B . 2016,第17期

机译：半导体纳米线中的异常约瑟夫森效应，作为拓扑无关紧要的阶段的标志
2. Geometry controlled superconducting diode and anomalous Josephson effect triggered by the topological phase transition in curved proximitized nanowires [J] . A.A. Kopasov, A.G. Kutlin, A.S. Melnikov Physical review.B.Condensed matter and materials physics . 2021,第14期

机译：几何控制超导二极管和弯曲纳米线中拓扑相变触发的异常约瑟夫森效应
3. Signatures of topological phase transitions in Josephson current-phase discontinuities [J] . Pasquale Marra, Roberta Citro, Alessandro Braggio Physical review . 2016,第22期

机译：约瑟夫森电流相不连续中拓扑相变的特征
4. Anomalous Diffusion or Classical Diffusion in an Anomalous Reservoir? Evaluation of the Impact of Multi-Phase Flow on Reservoir Signatures in Unconventional Reservoirs [C] . C.R. Clarkson, B. Yuan, Z. Zhang SPE/AAPG/SEG Unconventional Resources Technology Conference . 2019

机译：异常储层中的异常扩散或古典扩散？评估多相流对非传统水库水库签约的影响
5. Thermodynamic Signatures of Half-Quantum Vortices in p + ip Josephson Junction Arrays. [D] . Krahn, Graham Joel. 2012

机译：p + ip约瑟夫森结阵列中半量子涡的热力学特征。
6. Analytically determined topological phase diagram of the proximity-induced gap in diffusive n-terminal Josephson junctions [O] . Morten Amundsen, Jabir Ali Ouassou, Jacob Linder -1

机译：解析确定的扩散n端约瑟夫逊结中感应间隙的拓扑相图
7. Anomalous Josephson effect in semiconducting nanowires as a signature of the topologically nontrivial phase [O] . Nesterov, Konstantin N., Houzet, Manuel, Meyer, Julia S. 2016

机译：半导体纳米线中的异常约瑟夫森效应作为半导体纳米线的特征拓扑非平凡阶段

Anomalous Josephson effect in semiconducting nanowires as a signature of the topologically nontrivial phase

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