Editing Magnetic flux quantum (section)

== Dirac magnetic flux quantum ==
The first to realize the importance of the flux quantum was Dirac in his publication on monopoles<ref>{{cite journal |last=Dirac |first=Paul |author-link=Paul Dirac |title=Quantised Singularities in the Electromagnetic Field |journal=Proceedings of the Royal Society A |location=London |volume=133 |page=60 |year=1931 |issue=821 |doi=10.1098/rspa.1931.0130 |bibcode=1931RSPSA.133...60D |url=http://rspa.royalsocietypublishing.org/content/133/821/60 |url-access=subscription }}</ref>
{| class="wikitable"
|+ Dirac magnetic flux quantum<ref name="Kittel2">{{cite book|title=[[Introduction to Solid State Physics]]|author=C. Kittel|publisher=Wiley & Sons|year=1953–1976|isbn=978-0-471-49024-1|pages=281}}</ref> 
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! scope="col" style="width: 50%;" | [[International System of Quantities|ISQ]]
! scope="col" style="width: 50%;"| [[CGS units]]
|-
| <math>\Phi_0 = \frac{2\pi \hbar }{q}= \frac{h }{q}</math>
| <math>\Phi_0 = \frac{2\pi \hbar c}{q}= \frac{h c}{q}</math>
|}
The phenomenon of flux quantization was predicted first by [[Fritz London]] then within the [[Aharonov–Bohm effect]] and later discovered experimentally in superconductors (see ''{{slink|#Superconducting magnetic flux quantum}}'' below).