A sum rule for charged elementary particles
1 Max-Planck-Institut für die Physik
des Lichts, Günther-Scharowsky-Straße 1, Bau 24, 91058
2 Department für Physik, Universität Erlangen-Nürnberg, Staudtstraße 7, 91058 Erlangen, Germany
3 Departamento de Óptica, Facultad de Física, Universidad Complutense, 28040 Madrid, Spain
a e-mail: firstname.lastname@example.org
Received in final form: 15 January 2013
Published online: 21 March 2013
There may be a link between the quantum properties of the vacuum and the parameters describing the properties of light propagation, culminating in a sum over all types of elementary particles existing in Nature weighted only by their squared charges and independent of their masses. The estimate for that sum is of the order of 100.
Key words: Quantum Optics
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