Komar integral and Smarr formula for axion-dilaton black holes versus S duality

Jun 14, 2021
19 pages
Published in:
  • JHEP 08 (2021) 019
  • Published: Aug 4, 2021
e-Print:
Report number:
  • IFT-UAM/CSIC-21-065

Citations per year

202120222023202420251387
Abstract: (Springer)
We construct the Komar integral for axion-dilaton gravity using Wald’s formalism and momentum maps and we use it to derive a Smarr relation for stationary axion-dilaton black holes. While the Wald-Noether 2-form charge is not invariant under SL(2, ℝ) electric-magnetic duality transformations because Wald’s formalism does not account for magnetic charges and potentials, the Komar integral constructed with it turns out to be invariant and, in more general theories, it will be fully symplectic invariant. We check the Smarr formula obtained with the most general family of static axion-dilaton black holes.
Note:
  • LaTeX file, 19 pages, no figures
  • Black Holes
  • Classical Theories of Gravity
  • Supersymmetry and Duality
  • black hole: dilaton
  • charge: magnetic
  • invariance: symplectic
  • duality: transformation
  • gravitation: dilaton
  • SL(2,R)
  • S-duality