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- Title
Causality, Poincaré Invariance, and Goldstone Theorem in DLCQ.
- Authors
Martinovič, L.
- Abstract
We study three problems of the light-front field theory quantized in a finite volume with fields (anti-)periodic inx-: (a) microcausality by deriving an integral representation for the discrete Pauli-Jordan function; (b) surface terms violating Poincaré algebra; (c) a LF version of the Goldstone theorem. The first two problems are resolved by careful mathematical treatment. The third one illustrates the usefulness of DLCQ as an analytical scheme.
- Subjects
CAUSALITY (Physics); FIELD theory (Physics); QUANTUM chromodynamics; HEISENBERG uncertainty principle; QUANTUM theory; NUCLEAR physics
- Publication
Few-Body Systems, 2005, Vol 36, Issue 1-4, p167
- ISSN
0177-7963
- Publication type
Article
- DOI
10.1007/s00601-004-0095-6