# Anomalous states of positronium

@article{Patterson2019AnomalousSO,
title={Anomalous states of positronium},
author={Chris W. Patterson},
journal={Physical Review A},
year={2019},
volume={100},
pages={062128}
}
The energies and wave functions of the two-body Dirac equation for positronium are compared with those of the Pauli approximation and the Bethe-Salpeter equation. The unusual behavior of the ground-state wave function of the Dirac equation is explained in terms of anomalous bound-state solutions

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