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Quantum Fields in Curved Space by P. C. W. Davies, N. D. Birrell

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7

Applications of renormalization techniques

This short chapter presents some explicit examples of the theory of regularization and renormalization discussed in chapter 6. The number of spacetimes for which one may compute image in terms of simple functions is extremely limited, and we think it probable that all such cases have been included either here, in chapter 6, or in our references.

Special importance is attached to the Robertson−Walker models, both because of their cosmological significance, and also because, being conform ally flat, they provide a good illustration of conformal anomalies at work. However, precisely because of their simplicity, ...

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