Abstract
Scalar-tensor theories of gravity can beformulated in the Jordan or in the Einstein frame, whichare conformally related. The issue of which conformalframe is physical is a contentious one; we provide a straightforward example based ongravitational waves in order to clarify theissue.
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Faraoni, V., Gunzig, E. Einstein Frame or Jordan Frame?. International Journal of Theoretical Physics 38, 217–225 (1999). https://doi.org/10.1023/A:1026645510351
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DOI: https://doi.org/10.1023/A:1026645510351