2007/07/10 by A. A. Osipov, Alexander A. Osipov, Brigitte Hiller +2 · 1 citation
Physics and Astronomy · #Advanced Chemical Physics Studies #Spectroscopy and Quantum Chemical Studies #Theoretical and Computational Physics #hep-ph #hep-th
paper · pdf · doi:10.1016/j.physletb.2007.08.020
published as Phys.Lett.B653:346-349,2007 · Latex, 3 figures, 4 pages
arxiv created 2007/07/10 · openalex publication_date 2007/08/16 · arxiv updated 2009/12/01 · openalex created_date 2017/03/16 · openalex updated_date 2026/07/28
The 1/N expansion can be successfully used to calculate the Green functions of the two-dimensional O(2N) Gross - Neveu model. In parallel, the methods of analytic perturbation theory are also applied. Comparing the results of these two calculations at leading order, we report on the surprising agreement between them.