arXiv:2110.02335physics.atom-ph
Electromagnetically induced transparency based Rydberg-atom sensor for quantum voltage measurements
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Abstract
We investigate the Stark shift in Rydberg rubidium atoms through electromagnetically induced transparency for the measurement of direct current (dc) and 60~Hz alternating current (ac) voltages. This technique has direct applications to atom-based measurements of dc and ac voltage and the calibration of voltage instrumentation. We present experimental results for different atomic states that allow for dc and ac voltage measurements ranging from 0~V to 12~V. A Rydberg atom-based voltage standard could become an alternative calibration method with more favorable size, weight, power consumption, and cost compared to the more precise Josephson voltage standard. In this study, we also demonstrate how the voltage measurements can be utilized to determine the atomic polarizability for the Rydberg states. The Rydberg atom-based voltage measurement technology would become a complimentary method for dissemination of the voltage scale directly to the end user.
If you swim through the marketing soup, and the NIST web site, you eventually get to the page about Electric Field Metrology[1], which is what they're really talking about. Making something relatable to the layman on the street out of this technology is obviously at the limits…
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