Symmetries In Evolving Space-time and Their Connection To High-frequency   Gravity Wave Production
  We present how a worm hole bridge from a prior to the present universe allows us to use symmetry arguments which allow us to generate relic gravity waves, and also non massless gravitons. The relic gravitons are produced due to thermal / vacuum energy transferral from a prior universe using a pseudo time dependent version of the Wheeler De Witt equation as presented by Crowell (2005) 
A.W. Beckwith