Finite-order correlation length for 4-dimensional weakly self-avoiding walk and $|\phi {|}^4$ spins

Roland Bauerschmidt, Gordon Slade, Alexandre Tomberg +1

We study the 4-dimensional $n$-component $|\phi {|}^4$ spin model for all integers $n\ge 1$, and the 4-dimensional continuous-time weakly self-avoiding walk which corresponds exactly to…