在没有Floquet-Andreev状态的混合Josephson连接中,微波诱导导电导复制
Daniel Z Haxell1, Marco Coraiola1, Deividas Sabonis1
1IBM Research Europe-Zurich, 8803, Rüschlikon, Switzerland.
Nature communications
|October 26, 2023
概括
这项研究揭示了微波光如何影响混合约瑟夫森结. 研究人员观察了光子辅助道,澄清了量子设备中的光物质相互作用.
科学领域:
- 量子物理学的量子物理学
- 凝聚物质物理学 凝聚物质物理学
- 纳米技术纳米技术
背景情况:
- 轻物质合对于控制量子状态至关重要.
- 混合超导半导体约瑟夫森连接是关键的量子设备.
研究的目的:
- 调查微波辐射对混合Josephson连接点的影响.
- 分析安德里耶夫束状态光谱和电流相位关系.
主要方法:
- 使用了道光谱学.
- 在微波辐射下测量电流相位关系.
主要成果:
- 观察到光子辅助道,导致导电量复制.
- 排除了Floquet-Andreev状态作为原因.
- 通过光子相互作用解释了电流相位关系扭曲.
结论:
- 在纳米结构中研究轻物质合的既定技术.
- 从Floquet-Andreev状态区分的光子辅助道.
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