The numerical technique of discrete light-cone quantization (DLCQ) is applied to a single-fermion truncation of Yukawa theory in four dimensions. The truncated theory is regulated by three Pauli-Villars bosons, which are introduced directly in the DLCQ Fock-state basis. A special form of the Lanczos diagonalization algorithm is used to handle the indefinite metric. Renormalization is done nonperturbatively.
Bibliographical noteFunding Information:
The work reported here was done in collaboration with S.J. Brodsky and G. McCar-tor and was supported in part by the Department of Energy, contract DE-FG02-98ER41087, and by grants of computing time from the Minnesota Supercomputing Institute.