Conformal Anomaly and Large Scale Gravitational Coupling

TL;DR

This paper links conformal anomaly in quantum stress-tensor to cosmological effects by modeling the anomaly as a cosmological constant within Einstein's equations, connecting quantum effects with large-scale universe structure.

Contribution

It introduces a novel approach to relate quantum conformal anomalies to cosmological constants using a conformal frame and classical scalar fields.

Findings

Conformal anomaly can be interpreted as a cosmological constant.

Quantum stress-tensor influences large-scale matter distribution.

A new framework connects quantum effects with cosmological dynamics.

Abstract

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.