Source: /cirosantilli/gauge-theory

= Gauge theory
{wiki}

The term and idea was first introduced initialized by <Hermann Weyl> when he was working on combining <electromagnetism> and <general relativity> to formulate <Maxwell's equations in curved spacetime> in 1918 and published as <gravity and electricity by Hermann Weyl (1918)>. Based on perception that <U(1)> symmetry implies <charge conservation>. The same idea was later adapted for <quantum electrodynamics>, a context in which is has even more impact.