2000/01/17 by H. Salehi, Y. Bisabr
Physics and Astronomy · #hep-th
published as Int.J.Theor.Phys. 39 (2000) 1241-1244 · 4 pages, latex, no figures
arxiv created 2000/01/17 · arxiv updated 2009/11/30
We present a model in which the breackdown of conformal symmetry of a quantum stress-tensor due to the trace anomaly is related to a cosmological effect in a gravitational model. This is done by characterizing the traceless part of the quantum stress-tensor in terms of the stress-tensor of a conformal invariant classical scalar field. We introduce a conformal frame in which the anomalous trace is identified with a cosmological constant. In this conformal frame we establish the Einstein field equations by connecting the quantum stress-tensor with the large scale distribution of matter in the universe.