Mohr, P.
(2008),
Defining Units in the Quantum SI, Metrologia
(Accessed January 14, 2026)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Defining Units in the Quantum SI
Published
Author(s)
Abstract
Possible changes to the International System of Units (SI) are being discussed, including a proposal to define the units by specifying the values of a set of fundamental constants. This note is meant to be an elementary guide to the algebra associated with unit exponents which can be used to both display the relationships between different sets of units and to provide simple tests of whether a particular set of constants provides combinations of units that form a complete set.Citation
Metrologia
Volume
45
Issue
2
Pub Type
Journals
Keywords
algebra, dimensional analysis, International System of Units
Citation
Issues
If you have any questions about this publication or are having problems accessing it, please contact [email protected].
Created February 18, 2008, Updated February 19, 2017