Instantaneous Bethe-Salpeter Equation: (Semi-)Analytical Solution
Wolfgang Lucha, Khin Maung Maung, Franz F. Schöberl · arXiv (Cornell University) · 2000
The Bethe-Salpeter equation for bound states of a fermion-antifermion pair in the instantaneous approximation for the involved interaction kernel is converted into an equivalent matrix eigenvalue problem with explicitly (algebraically) given matrices.