By exploiting the construction of charged field algebras as canonical extensions of CCR current algebras in 1+1 dimensions and nonregular representations of extended algebras, we provide an algebraic construction of local Fermi fields as ultrastrong limits of bosonic variables in all representations which are locally Fock with respect to the ground-state representation of the massless scalar field.
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Acerbi, F., Morchio, G. & Strocchi, F. Algebraic fermion bosonization. Lett Math Phys 26, 13–22 (1992). https://doi.org/10.1007/BF00420514
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