PCM in arbitrary fields
Quantum field theory
The first exact solution for the vacuum state of an asymptotically free QFT in a general external field found for the Principal Chiral Model.
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 Principal Chiral Model at large- 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.