Solutions to Problems in Peskin and Schroeder, An Introduction To Quantum Field Theory
Homer Reid March 13, 2003
Chapter 3
Problem 3.1
Part a. The commutation relations are [J , J ] = i g J g J g J + g J . Then we have [K i , K j ] = [J 0i , J 0j ] = i g
Solutions to Problems in Peskin and Schroeder, An Introduction To Quantum Field Theory
Homer Reid November 16, 2002
Chapter 2
Problem 2.1
(a) The Lagrangian density is 1 L = F F . 4 Since Fij = Fji there are really only 6 terms in the sum: = 1 F01 F 01 +