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局部化准粒子在一个带有准二维无形动力感应器的流动中
Trevyn F Q Larson1,2, Sarah Garcia Jones1,3, Tamás Kalmár3,4,5
1Department of Physics, University of Colorado Boulder, Boulder, CO, USA.
Nature communications
|February 21, 2026
概括
对于量子电路至关重要的无序超导材料,表现出由局部准粒子主导的损失. 优化这些材料需要了解损失依赖于混乱和几何.
科学领域:
- 凝聚物质物理学 凝聚物质物理学
- 量子工程是量子工程的组成部分.
背景情况:
- 无序的超导材料具有高动力电感,对于量子电路非线性和高阻抗环境至关重要.
- 薄膜中的低维度和混乱增强了波动和动力感应,对设备的一致性提出了挑战.
研究的目的:
- 研究 tungsten silicide 超导电线中的损失机制.
- 确定设备损失对频率,失调水平和几何学的依赖.
主要方法:
- 从准二维薄膜制造酸线的制造.
- 将这些线程集成到微波共振器和流量子位中.
- 作为频率,混乱和设备几何学的函数,对损失的系统研究.
主要成果:
- 设备损耗随着超导材料中混乱程度的增加而增加.
- 被困在超导间隙变化的局部准粒子是损失的主要来源.
- 动力电感被成功地用作量子电路中的电感元件.
结论:
- 这些发现凸显了局部准粒子在限制无序超导装置性能方面的关键作用.
- 了解和减轻准粒子引起的损失对于推进量子电路应用至关重要.
- 酸线显示出对高阻抗量子电路应用的前景,前提是损失机制得到了管理.
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