The Planck constant of action and the Kibble balance

From National Research Council Canada

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DOI	Resolve DOI: https://doi.org/10.1016/j.jms.2023.111794
Author	Search for: Bunker, P. R.¹; Search for: Yurchenko, Sergei N.ORCID identifier: https://orcid.org/0000-0001-9286-9501
Affiliation	National Research Council Canada. Security and Disruptive Technologies
Funder	Search for: Science and Technology Facilities Council
Format	Text, Article
Subject	Planck constant; Kibble balance; units; the angular dimension
Abstract	It has been shown previously (P. R. Bunker and Per Jensen, J. Quant. Spectrosc. Radiat. Transf., 243 (2020) 106835) that if we choose angles to have dimension, we have to distinguish between the Planck constant ℎ, having the dimension of action angle⁻¹, and the Planck constant of action ℎA, having the dimension of action. In the present paper, we show that a further implication that results from choosing angles to have dimension is that the Kibble balance equation relating the mass weighed to the Planck constant has to involve both of the distinct fundamental constants ℎ and ℎA. We derive that new equation here and show how it compares to the equation that is obtained if one chooses angles to be dimensionless as required in SI.
Publication date	2023-05-26
Publisher	Elsevier
Licence	Creative Commons, Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/
In	Journal of Molecular Spectroscopy 395, no. C, 111794 (26 May 2023).
Language	English
Peer reviewed	Yes
Identifier	S0022285223000590
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Record identifier	e0b305a3-8b7c-4a29-93fd-ce26ae20a07b
Record created	2023-08-23
Record modified	2023-08-23

Date modified:: 2025-12-15