Spectral properties of Schwarzschild instantons

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Abstract

We study spectral properties of the Dirac and scalar Laplace operator on the Euclidean Schwarzschild space, both twisted by a family of abelian connections with anti-self-dual curvature. We show that the zero-modes of the gauged Dirac operator, first studied by Pope, take a particularly simple form in terms of the radius of the Euclidean time orbits, and interpret them in the context of geometric models of matter. For the gauged Laplace operator, we study the spectrum of bound states numerically and observe that it can be approximated with remarkable accuracy by that of the exactly solvable gauged Laplace operator on the Euclidean Taub-NUT space.

Original languageEnglish
Article number205008
JournalClassical and Quantum Gravity
Volume33
Issue number20
Early online date26 Sep 2016
DOIs
Publication statusPublished - Oct 2016

Keywords

  • Dirac operator
  • Euclidean Schwarzschild space
  • Euclidean Taub-NUT space
  • spectrum of Laplace operator

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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