Two observers calculate the trace anomaly

Details Two observers calculate the trace anomaly Two observers calculate the trace anomaly

1995-08-16

arxiv.org/abs/hep-th/9508077v2

Class.Quant.Grav. 13 (1996) 179-188

Physics

High Energy Physics

High Energy Physics - Theory

RevTeX, 13 pages, some typos corrected and an appendix added, this is the version to appear in Class. and Quantum Gavity

Scientific paper

10.1088/0264-9381/13/2/006

We adapt a calculation due to Massacand and Schmid to the coordinate independent definition of time and vacuum given by Capri and Roy in order to compute the trace anomaly for a massless scalar field in a curved spacetime in 1+1 dimensions. The computation which requires only a simple regulator and normal ordering yields the well-known result $\frac{R}{24\pi}$ in a straightforward manner.

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