Smoothing regularization and particle creation in curved spacetime
1982
Abstract A regularization procedure is given for the stress tensor of a quantized field in a background metric. This regularization is shown to be equivalent to a covariant renormalization of constants in the generalized Einstein equations. An example of the massive spinor field in Robertson-Walker universe is considered. Regular values of the stress tensor near the cosmological singularity are found.
Keywords:
- Metric tensor (general relativity)
- Lanczos tensor
- Quantum mechanics
- Maxwell's equations in curved spacetime
- Mathematics of general relativity
- Quantum electrodynamics
- Four-tensor
- Einstein tensor
- Tensor contraction
- Introduction to the mathematics of general relativity
- Physics
- Tensor density
- Linearized gravity
- Stress–energy tensor
- Correction
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