Vacuum energymomentum tensors in Schwarzschildde Sitter spacetime.
Abstract
Consideration is given to a quantum, massless scalar field minimally coupled to the SchwarzschildDe Sitter spacetime containing both a cosmological and a blackhole horizon. A gravitationally collapsing body in two dimensions is investigated, and it is found that during late stages of collapse the shell thermally radiates particles with an effective temperature proportional to the surface gravity of the incipient black hole (Hawking radiation). Results are also generalized to fourdimensional spacetime. For the quantization problem in the presence of a past event horizon, energymomentum tensors are constructed with respect to the nonequivalent vacuum states, and the physical meanings of the tensor are discussed.
 Publication:

Nuovo Cimento B Serie
 Pub Date:
 January 1980
 DOI:
 10.1007/BF02728380
 Bibcode:
 1980NCimB..55...97D
 Keywords:

 Astrophysics;
 Field Theory (Physics);
 Gravitational Collapse;
 Schwarzschild Metric;
 SpaceTime Functions;
 Thermal Radiation;
 Energy Distribution;
 Gravitational Fields;
 Quantum Theory;
 Astrophysics;
 Relativistic Astrophysics;
 Gravitation Theory;
 Background Radiation;
 Black Holes