The Yang Lee Edge Singularity on Feynman Diagrams

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dc.creatorJohnston, D. A.
dc.date1998-01-21
dc.date.accessioned2026-07-07T10:51:57Z
dc.date.available2026-07-07T10:51:57Z
dc.descriptionWe investigate the Yang-Lee edge singularity on non-planar random graphs, which we consider as the Feynman Diagrams of various d=0 field theories, in order to determine the value of the edge exponent. We consider the hard dimer model on phi3 and phi4 random graphs to test the universality of the exponent with respect to coordination number, and the Ising model in an external field to test its temperature independence. The results here for generic (``thin'') random graphs provide an interesting counterpoint to the discussion by Staudacher of these models on planar random graphs.
dc.descriptionLaTeX, 6 pages + 3 figures
dc.identifierhttps://arxiv.org/abs/hep-lat/9801026
dc.identifierhttp://arxiv.org/abs/hep-lat/9801026
dc.identifierJ.Phys.A31:5641-5650,1998
dc.identifierdoi:10.1088/0305-4470/31/26/005
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/184996
dc.subjectHigh Energy Physics - Lattice
dc.subjectStatistical Mechanics
dc.titleThe Yang Lee Edge Singularity on Feynman Diagrams
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