Symmetry associated with conservation of electric charge.

[azabak]

What symmetry of nature yields the conservation of electric charge?

 

[TrickyDicky]

What symmetry of nature yields the conservation of electric charge?

Gauge symmetry of EM (arbitrariness of electric potential up to an additive constant and equivalently phase shift invariance of wavefunction in QM).

 

[azabak]

Thank you.