The Spectrum of QED₁₊₁ in the framework of the DLCQ method

2001/03/29 by Stephan Elser, Elser, Stephan
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-th

paper · pdf · doi:10.48550/arxiv.hep-th/0103253

5 pages, 3 figures, invited talk given at the Hadron Structure '94 conference, Kosice, Slovakia, 19/9-23/9/1994

arxiv created 2001/03/29 · arxiv updated 2009/11/30

Abstract

We investigate the influence of the fermion field boundary conditions on the spectrum and wavefunctions of QED₁₊₁ in the Discretized Light-Cone Quantization formalism suggested by Pauli and Brodsky. The basic lesson is that one Fourier mode (namely the zero mode) can be decisive for even the ground state mass. The choice of boundary conditions is seen to be not important, if and only if all degrees of freedom are treated properly. This is still a problem for light-cone quantization in general.

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