Noether current
= Noether current
{c}
{title2=$j^\mu$}
A continuous variational symmetry gives a current satisfying $\partial_\mu j^\mu=0$ <on shell>. Integrating $j^0$ over space gives a conserved charge when boundary flux vanishes.
= Noether current
{c}
{title2=$j^\mu$}
A continuous variational symmetry gives a current satisfying $\partial_\mu j^\mu=0$ <on shell>. Integrating $j^0$ over space gives a conserved charge when boundary flux vanishes.