CP^n Model on Fuzzy Sphere
High Energy Physics - Theory
2011-07-19 v3 Mesoscale and Nanoscale Physics
Abstract
We construct the CP^n model on fuzzy sphere. The Bogomolny bound is saturated by (anti-)self-dual solitons and the general solutions of BPS equation are constructed. The dimension of moduli space describing the BPS solution on fuzzy sphere is exactly the same as that of the commutative sphere or the (noncommutative) plane. We show that in the soliton backgrounds, the number of zero modes of Dirac operator on fuzzy sphere, Atiyah-Singer index, is exactly given by the topological charge of the background solitons.
Cite
@article{arxiv.hep-th/0105087,
title = {CP^n Model on Fuzzy Sphere},
author = {Chuan-Tsung Chan and Chiang-Mei Chen and Feng-Li Lin and Hyun Seok Yang},
journal= {arXiv preprint arXiv:hep-th/0105087},
year = {2011}
}
Comments
v3: 23 pages, Latex. Final version to appear in Nucl. Phys. B