Lattice calculations of the massive Schwinger model

Full text: The Schwinger model (1+1D QED) is the simplest of all gauge theories, and can be solved analytically in the two limits of strong coupling, e >> m, and weak coupling e << m. The model also exhibits many of the same phenomena as QCD, such as confinement and chiral symmetry breaking with a U(1) axial current anomaly. As a result this makes the massive Schwinger model an ideal test bed for various lattice techniques which can later be applied to QCD. We use Hamiltonian lattice techniques and exactly diagonalise the resulting matrix to calculate eigenvalues for the massive Schwinger model. Our numerical results are more accurate than previous results obtained using the method