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Quantisation of the free electromagnetic field implies quantisation of its angular momentum

Stewart, Andrew


It is shown that when the gauge-invariant Bohr-Rosenfeld commutators of the free electromagnetic field are applied to the expressions for the linear and angular momentum of the electromagnetic field interpreted as operators then, in the absence of electric and magnetic charge densities, these operators satisfy the canonical commutation relations for momentum and angular momentum. This confirms their validity as operators that can be used in quantum mechanical calculations of angular momentum.

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
Source: Journal of Modern Optics
DOI: 10.1080/09500340.2011.571797


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