- #1
eudo
- 28
- 7
In QFT, the commutation relation for the field operator \hat{\phi} and conjugate momentum is
<br /> [\phi(x,t),\pi(y,t)] = i\delta(x-y)<br />
Maybe this is obvious, but what would the commutator of \phi or \pi and, say, e^{i k\cdot x} be?
<br /> [\phi(x,t),\pi(y,t)] = i\delta(x-y)<br />
Maybe this is obvious, but what would the commutator of \phi or \pi and, say, e^{i k\cdot x} be?
