Srednicki — Quantum Field Theory · Problem 82.1

Canonical Quantization of Scalar Fields — Mark Srednicki

Physics — QFT · wilson-loops-lattice-confinement

Problem

Let

C

be a circle of radius

R

. Evaluate the constant

\tilde{c}

in eq. (82.18), where

P = 2\pi R

is the circumference of the circle. Replace

1/(x-y)^2

with zero when

|x-y| < a

. Assume

a \ll R