The periodic table of static fermion bags in the Gross-Neveu Model

Abstract

We study the spectrum of stable static fermion bags in the 1+1 dimensional Gross-Neveu model with $N$ flavors of Dirac fermions, in the large $N$ limit. In the process, we discover a new kink, heavier than the Callan-Coleman-Gross-Zee (CCGZ) kink, which is marginally stable (at least in the large $N$ limit). The connection of this new kink and the conjectured $S$ matrix of the Gross-Neveu model is obscured at this point. After identifying all stable static fermion bags, we arrange them into a periodic table, according to their $O(2N)$ and topological quantum numbers.

Talk at the Fifth Workshop on Quantum Field Theory under the Influence of External Conditions, Leipzig, Germany, September 2001. (latex, 6 pages)

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