On particle creation by black holes

  title={On particle creation by black holes},
  author={Robert M. Wald},
  journal={Communications in Mathematical Physics},
  • R. Wald
  • Published 1975
  • Physics
  • Communications in Mathematical Physics
Hawking's analysis of particle creation by black holes is extended by explicitly obtaining the expression for the quantum mechanical state vector ψ which results from particle creation starting from the vacuum during gravitational collapse. (Hawking calculated only the expected number of particles in each mode for this state.) We first discuss the quantum field theory of a Hermitian scalar field in an external potential or in a curved but asymptotically flat spacetime with no horizon present… 

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