Heat kernel coefficients for compact fuzzy spaces
High Energy Physics - Theory
2008-11-26 v4 Quantum Physics
Abstract
I discuss the trace of a heat kernel Tr[e^(-tA)] for compact fuzzy spaces. In continuum theory its asymptotic expansion for t -> +0 provides geometric quantities, and therefore may be used to extract effective geometric quantities for fuzzy spaces. For compact fuzzy spaces, however, an asymptotic expansion for t -> +0 is not appropriate because of their finiteness. It is shown that effective geometric quantities are found as coefficients of an approximate power-law expansion of the trace of a heat kernel valid for intermediate values of t. An efficient method to obtain these coefficients is presented and applied to some known fuzzy spaces to check its validity.
Cite
@article{arxiv.hep-th/0411029,
title = {Heat kernel coefficients for compact fuzzy spaces},
author = {Naoki Sasakura},
journal= {arXiv preprint arXiv:hep-th/0411029},
year = {2008}
}
Comments
Minor changes, 8 pages, 12 figures, LaTeX, JHEPclass