Exact Results for 't Hooft Loops in Gauge Theories ... - Solvay Institutes

Introduction Problem Definitions Method Solution Result
Now consider
Integrating by parts we get
∫
Z t = [Dφ] e −S 0[φ]−t{Q,V [φ]}
d
dt Z t = 0 =⇒ Z 0 = Z ∞
At t = ∞ the one-loop approximation to Z t is exact. But
Z t = Z 0 . Hence we get exact Z 0 .
Vasily Pestun Localization for ’t Hooft operators on S 4 11/35