4 papers
Towards a 3D reduction of the N-body Bethe-Salpeter equation
J. Bijtebier
Starting with the homogeneous Bethe-Salpeter equation for two fermions, we perform a 3D reduction using a series expansion around an unspecified positive-energy instantaneous appro…
Two and three-fermion 3D equations deduced from Bethe-Salpeter equations
J. Bijtebier
We write a 3D equation for three fermions by combining the three two-body potentials obtained in 3D reductions (based on a series expansion around a relative-energy fixing "approxi…
Higher-order corrections to the two and three-fermion Salpeter equations
J. Bijtebier
We compare two opposite ways of performing a 3D reduction of the two-fermion Bethe-Salpeter equation beyond the instantaneous approximation and Salpeter's equation. The more usual…
A three-fermion Salpeter equation
J. Bijtebier
We write a 3D equation for three fermions by combining the three two-body potentials obtained by the reductions of the corresponding two-fermion Bethe-Salpeter equations to equival…