PCM in arbitrary fields

Large-N principal chiral model in arbitrary external fields

Asymptotically free QFTs exhibit fundamental, non-perturbative properties in external fields but no analytic solutions for them are known for generic field configurations. Here, we solve the 2d $SU(N)$ Principal Chiral Model at large-$N$ for any set of chemical potentials. An emergent third dimension in the solution supports our earlier conjecture of a possible dual string description in a specific double-scaled limit.