Graviton emission into non-Z2 symmetric brane world spacetimes

  title={Graviton emission into non-Z2 symmetric brane world spacetimes},
  author={Ian R. Vernon and David Jennings},
  journal={Journal of Cosmology and Astroparticle Physics},
  • Ian R. Vernon, David Jennings
  • Published 2005
  • Physics
  • Journal of Cosmology and Astroparticle Physics
  • The equations for the evolution of a homogeneous brane world that emits gravitons at early times, and into a non-Z2 symmetric bulk, are derived using an AdS–Vaidya spacetime approximation. The behaviour of the black hole mass parameters either side of the brane is analysed, and it is found that in general graviton emission leads to a decrease in the non-Z2 symmetry. However, the behaviour of the dark radiation term in the Friedmann equation is more complex: it is shown that this term can… CONTINUE READING