Fermion loop simulations in 2--d lattice theories -- results and limitations

Abstract

We review our results for the simulation of the 2--d lattice Gross--Neveu model in a fermion loop representation. Possible extensions of our techniques to other models and higher dimensions are discussed, as well as the limitations of loop--type representations.

Comments: 7 pages, 2 figures. Presented at the 25th International Symposium on Lattice Field Theory, July 30 - August 4, 2007, Regensburg, Germany