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On the uniqueness of the expected stress-energy tensor in renormalizable field theories

L. L. Salcedo
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Abstract

It is argued that the ambiguity introduced by the renormalization in the effective action of a four-dimensional renormalizable quantum field theory is at most a local polynomial action of canonical dimension four. The allowed ambiguity in the expected stress-energy tensor of a massive scalar field is severely restricted by this fact.

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L. L. Salcedo. 1999-09-17. On the uniqueness of the expected stress-energy tensor in renormalizable field theories. https://doi.org/10.1103/physrevd.60.107502

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