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DMRG study of the theta-dependent mass spectrum in the 2-flavor Schwinger model

By Etsuko Itou and others
We study the \theta-dependent mass spectrum of the massive 2-flavor Schwinger model in the Hamiltonian formalism using the density-matrix renormalization group(DMRG). The masses of the composite particles, the pion and sigma meson, are computed by two independent methods. One is the improved one-point-function scheme, where we measure the local meson... Show more
July 16, 2024
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DMRG study of the theta-dependent mass spectrum in the 2-flavor Schwinger model
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