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hep-th1998
The Feynman Variational Principle in the Worldline Representation of Field Theory
R. Rosenfelder, C. Alexandrou, A. W. Schreiber
Following Feynman's treatment of the non-relativistic polaron problem, similar techniques are used to study relativistic field theories: after integrating out the bosonic degrees o…
hep-ph1998
Dimensionally Regularized Study of Nonperturbative Quenched QED
Andreas W. Schreiber, Tom Sizer, Anthony G. Williams
We study the dimensionally regularized fermion propagator Dyson-Schwinger equation in quenched nonperturbative QED in an arbitrary covariant gauge using the Curtis-Pennington verte…