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  • Large-N principal chiral model in arbitrary external fields

    quantum field theory

    VKESE. SobkoKZ Physical Review Letters

    PCM in arbitrary fields

    The first exact solution for the vacuum state of an asymptotically free QFT in a general external field found for the Principal Chiral Model.

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PCM in arbitrary fields

quantum field theory

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)SU(N) Principal Chiral Model at large-NN 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.