112 citations · 425 across the 33 of their papers we have counts for
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hep-th2001★ 20 cited
Improved variational description of the Wick-Cutkosky model with the most general quadratic trial action
R. Rosenfelder, A. W. Schreiber
We generalize the worldline variational approach to field theory by introducing a trial action which allows for anisotropic terms to be induced by external 4-momenta of Green's fun…
math-ph2001★ 5 cited
The W_t Transcendental Function and Quantum Mechanical Applications
V. E. Markushin, R. Rosenfelder, A. W. Schreiber
We discuss the function wt(x) defined via the implicit equation wt(x)*tan[wt(x)]=x which appears in certain quantum mechanical and field theoretic applications. We investigate its…