Associated to Lorentz invariance is a conserved Noether current, or rather a tensor of conserved Noether currents . Similarly, since the equation is invariant under translations, there is a tensor of conserved Noether currents , which can be identified as the stress-energy tensor of the theory. The Lorentz current can be written in terms of the stress-energy tensor in addition to a tensor representing internal angular momentum.
Associated to Lorentz invariance is a conserved Noether current, or rather a tensor of conserved Noether currents . Similarly since the equation is invariant under translations, there is a tensor of conserved Noether currents , which can be identified as the stress-energy t.ensor of the theory The Lorentz current can be written, in ter.ms of the stress-energy tensor in addition to a tensor representing internal angular momentum