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在NIST进行基于量子的真空计量

Julia Scherschligt¹, James A Fedchak¹, Zeeshan Ahmed¹

¹National Institute of Standards and Technology, 100 Bureau Dr. Gaithersburg, MD 20899.

Journal of vacuum science & technology. A, Vacuum, surfaces, and films : an official journal of the American Vacuum Society

|March 18, 2024

概括

通过探索光学技术和量子性质,NIST正在推进压力测量科学,以重新定义帕斯卡 (Pa). 这项工作旨在使真空计量学与现代基于量子的标准保持一致.

科学领域:

计量学计量学计量学
量子物理学量子物理学是一种量子物理学.
光学科学光学科学

背景情况:

美国国家标准与技术研究所 (NIST) 专注于压力测量科学,特别是帕斯卡尔 (Pa).
传统的压力传播方法正在根据现代科学进步重新评估.

研究的目的:

研究巴斯卡计量学的现代光学技术.
在量子性质和基本常数方面探索重新塑造帕斯卡.
确保真空计量与全球转向量子计量学的转变保持一致.

主要方法:

对多光子电离技术的研究.
腔环减光谱的应用用于压力测量.
使用低真空的光学腔体对气体折射率进行质疑.
使用被困的激光冷却原子在高真空中计数背景粒子.

主要成果:

探索用于精确压力测量的先进光学方法.
制定策略,将压力标准与基本常数联系起来.
在真空计量学中基于量子方法的进展.

结论:

现代光学技术显示出对推进帕斯卡计量学的前景.
使用量子属性重新打造帕斯卡将提高测量的一致性.
尼斯特的研究为量子计量学的全球趋势做出了贡献.

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