COLLAPSE AND DISPERSAL IN MASSLESS SCALAR FIELD MODELS

@article{Bhattacharya2011COLLAPSEAD,
  title={COLLAPSE AND DISPERSAL IN MASSLESS SCALAR FIELD MODELS},
  author={Swastik Bhattacharya and Rituparno Goswami and Pankaj S. Joshi},
  journal={International Journal of Modern Physics D},
  year={2011},
  volume={20},
  pages={1123-1133}
}
The phenomena of collapse and dispersal for a massless scalar field have drawn considerable interest in recent years, mainly from a numerical perspective. We give here a sufficient condition for the dispersal to take place for a scalar field that initially begins with a collapse. It is shown that the change of the gradient of the scalar field from a timelike to a spacelike vector must be accompanied by the dispersal of the scalar field. This result holds independently of any symmetries of the… 
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