Phys. Rev. D 37, 1694–1695 (1988)Stress tensors from effective potentialsReceived 30 October 1987; published in the issue dated 15 March 1988 The interpretation of the effective potential as an energy density is critiqued. Tμν can be found from the effective potential by a careful treatment of the potential’s dependence on the metric. The subtleties involved are discussed using several examples for clarification. We have clarified the physical meaning of the effective potential; in general it should not be interpreted as the energy density of a system. © 1988 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.37.1694
DOI:
10.1103/PhysRevD.37.1694
PACS:
11.10.Ef
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