English

'Schwinger Model' on the Fuzzy Sphere

High Energy Physics - Theory 2010-11-23 v4

Abstract

In this paper, we construct a model of spinor fields interacting with specific gauge fields on fuzzy sphere and analyze the chiral symmetry of this 'Schwinger model'. In constructing the theory of gauge fields interacting with spinors on fuzzy sphere, we take the approach that the Dirac operator DqD_q on q-deformed fuzzy sphere SqF2S_{qF}^2 is the gauged Dirac operator on fuzzy sphere. This introduces interaction between spinors and specific one parameter family of gauge fields. We also show how to express the field strength for this gauge field in terms of the Dirac operators DqD_q and DD alone. Using the path integral method, we have calculated the 2n2n-point functions of this model and show that, in general, they do not vanish, reflecting the chiral non-invariance of the partition function.

Keywords

Cite

@article{arxiv.0907.3020,
  title  = {'Schwinger Model' on the Fuzzy Sphere},
  author = {E. Harikumar},
  journal= {arXiv preprint arXiv:0907.3020},
  year   = {2010}
}

Comments

Minor changes, typos corrected, 18 pages, to appear in Mod. Phys. Lett. A

R2 v1 2026-06-21T13:26:02.616Z