%0 Journal Article
%T Einstein frame or Jordan frame ?
%A Valerio Faraoni
%A Edgard Gunzig
%J Physics
%D 1999
%I arXiv
%X Scalar-tensor theories of gravity can be formulated in the Jordan or in the Einstein frame, which are conformally related. The issue of which conformal frame is physical is a contentious one; we provide a straightforward example based on gravitational waves in order to clarify the issue.
%U http://arxiv.org/abs/astro-ph/9910176v1