A new approach to the two-dimensional sigma model with a topological charge
Based on character decomposition, a dual transformation is introduced leading to two formulations of the theory which should allow for a removal/softening of the sign problem in the original version. Very preliminar numerical results are commented and remaining problems discussed.
Proceedings of the 31st International Symposium on Lattice Field Theory (LATTICE 2013). 29 July-3 August
- Pub Date:
- High Energy Physics - Lattice;
- Condensed Matter - Statistical Mechanics;
- High Energy Physics - Theory
- 7 pages, 1 figure, 1 table