From the fuzzy disc to edge currents in Chern-Simons Theory

Abstract

We present a brief review of the fuzzy disc, the finite algebra approximating functions on a disc, which we have introduced earlier. We also present a comparison with recent papers of Balachandran, Gupta and Kürkçüoǧlu, and of Pinzul and Stern, aimed at the discussion of edge states of a Chern-Simons theory.

8 pages, 6 figures, Talk presented at ``Space-time and Fundamental Interactions: Quantum Aspects'', conference in honour of A. P. Balachandran's 65th birthday. References added and one misprint corrected