English

$C_T$ for monodromy defects of fields on odd dimensional spheres for higher derivative propagation

High Energy Physics - Theory 2022-03-02 v3

Abstract

The central charge CTC_T is computed for scalar and Dirac fields propagating according to GJMS-type kinetic operators acting on odd dd-dimensional spheres in the presence of a spherical monodromy. The relation of CTC_T to the derivatives of the free energy on the conically deformed sphere via the Perlmutter factor leads to a numerical quadrature. The variation of CTC_T with the monodromy flux, δ\delta, displays sign changes, exactly as in even dimensions. Closed forms for CTC_T are derived when δ\delta equals 0 or 1/2 with the derivative order either even or odd and shown to agree with existing, even dd expressions. The infinite dd limits are also derived in these special cases.

Keywords

Cite

@article{arxiv.2202.10373,
  title  = {$C_T$ for monodromy defects of fields on odd dimensional spheres for higher derivative propagation},
  author = {J. S. Dowker},
  journal= {arXiv preprint arXiv:2202.10373},
  year   = {2022}
}

Comments

13 pages, 2 figures Minor corrections and additions. Discussion of the validity of the Perlmutter factor and references added. (This is the intended version 2)