In physics a conserved current is a current, j μ {\displaystyle j^{\mu }} , that satisfies the continuity equation ∂ μ j μ = 0 {\displaystyle \partial _{\mu }j^{\mu }=0} . The continuity equation represents a conservation law, hence the name.
In physics a conserved current is a current, j μ {\displaystyle j^{\mu }} , that satisfies the continuity equation ∂ μ j μ = 0 {\displaystyle \partial _{\mu }j^{\mu }=0} . The continuity equation represents a conservation law, hence the name.
Source: Wikipedia "Conserved current" · CC BY-SA 4.0
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