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hep-th1997
Front form QED(3+1): The spin-multiplet structure of the positronium spectrum at strong coupling
U. Trittmann
Numerical results on the positronium spectrum in the front form of QED at large coupling constant are presented. Emphasis is put on the question whether one can derive an effective…
hep-th1997
On the Role of the Annihilation Channel in Front Form Positronium
Uwe Trittmann
The annihilation channel is implemented into the front form calculations of the positronium spectrum presented in a previous publication. The effective Hamiltonian is calculated an…