The FBSDE approach to sine-Gordon up to $6\ddot{I}€$

Massimiliano Gubinelli, Sarah-Jean Meyer

We develop a stochastic analysis of the sine-Gordon Euclidean quantum field $(\cos ({\hat{I}}^2\ddot{I}†){)}_2$ on the full space up to the second threshold, i.e. for $β^2 < 6 π$. The basis of our…