Abstract
We further develop the quantization of topological solitons in two-dimensional quantum field theory in terms of Euclidean region functional integrals. Our approach is nonperturbative and mathematically rigorous. We apply it to construct physical states with fractional fermion number in models of interacting bosons and fermions without recurring to a semiclassical approximation. A related issue discussed in this paper is two-dimensional chiral bosonization.
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Fröhlich, J., Marchetti, P. Bosonization, topological solitons and fractional charges in two-dimensional quantum field theory. Commun.Math. Phys. 116, 127–173 (1988). https://doi.org/10.1007/BF01239028
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DOI: https://doi.org/10.1007/BF01239028