On the Derivation of Dual Models from Field Theory. 2.
Nov, 197744 pages
Published in:
- Phys.Rev.D 17 (1978) 1073
Report number:
- MIT-CTP-685
Citations per year
Abstract: (APS)
We rewrite λφ4 theory as a dual string expansion by performing a combined topological strong-coupling expansion on an x+, P+ lattice. The resulting expansion is the standard dual loop expansion plus the pointenergy-momentum density graphs of Green. The expansion goes through only for the "wrong" sign of λ, i.e., when the theory is asymptotically free and infrared unstable. The coupling strength λ is fixed by an eigenvalue condition, and the rest tension of the string, T0 replaces it as a free parameter. The continuum limit only exists for the critical dimension D=26. We suggest that this approach might be a suitable starting point for spectrum calculations in quantum chromodynamics.- field theory: scalar
- dual resonance model
- MODEL: STRONG COUPLING
- MODEL: STRING
- FEYNMAN GRAPH: HIGHER-ORDER
- APPROXIMATION: LATTICE
- PROPAGATOR: STRING
- QUANTUM CHROMODYNAMICS
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