Abstract
We study worldsheet theory of confining strings in two-dimensional massive adjoint QCD. Similarly to confining strings in higher dimensions this theory exhibits a non-trivial S-matrix surviving even in the strict planar limit. In the process of two-particle scattering a zigzag is formed on the worldsheet. It leads to an interesting non-locality and exhibits some properties of a quantum black hole. Ordinarily, identical quantum particles do not carry identity. On the worldsheet they acquire off-shell identity due to strings attached. Identity implies complementarity. We discuss similarities and differences of the worldsheet scattering with the \( T\overline{T} \) deformation. We also propose a promising candidate for a supersymmetric model with integrable confining strings.
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Dubovsky, S. A simple worldsheet black hole. J. High Energ. Phys. 2018, 11 (2018). https://doi.org/10.1007/JHEP07(2018)011
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DOI: https://doi.org/10.1007/JHEP07(2018)011