Sign up ×
Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It's 100% free.

Srednicki in his QFT book introduces the the Hamiltonian operator of the quantum field theory (equation 1.32). Here what are $U \bf(x)$ and $V\bf(x-y)$?

share|cite|improve this question
He explains what they are just above Eq. (1.30). He is describing a set of particles, each of which is subject to some potential $U(x)$ and interacting through $V(x-y)$. You probably have seen these objects in a normal quantum mechanics class. – Vibert Feb 27 '13 at 20:03

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.