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Discretized light-cone quantization: The massless and the massive Schwinger model

Journal Article · · Phys. Rev. D; (United States)
The method of discretized light-cone quantization (DLCQ), recently proposed for obtaining nonperturbative solutions to field theories, is applied to quantum electrodynamics in one space dimension (QED/sub 2/). The spectrum of invariant masses and the eigenfunctions of the light-cone Hamiltonian are calculated; i.e., the bound-state problem is solved for all values of the coupling constant. For very strong coupling (Schwinger model proper) DLCQ reproduces one to one the known exact solutions. For nonvanishing fermion mass (massive Schwinger model) the results of DLCQ agree with earlier work and in particular with a lattice gauge calculation.
Research Organization:
Max-Planck-Institute fuer Kernphysik, D-6900 Heidelberg 1, Germany
OSTI ID:
6924343
Journal Information:
Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 35:4; ISSN PRVDA
Country of Publication:
United States
Language:
English