Recent content by Greener1387

  1. G

    Commutators with the Dirac Equation

    Thanks, sgd37, writing it in \epsilon_{ijk} notation definitely cleared things up for me.
  2. G

    Commutators with the Dirac Equation

    Homework Statement (Introduction to Elementary Particles, David Griffiths. Ch 7 Problem 7.8 (c)) Find the commutator of H with the spin angular momentum, S= \frac{\hbar}{2}\vec{\Sigma}. In other words find [H,S] Homework Equations For the Dirac equation, the Hamiltonian...