Suppose there is a field that couples to the stress-energy tensor. For simplicity, assume it's a scalar field coupling to [tex]T=T^\mu_\mu[/tex]. Since contracting Einstein's equations with the metric yield the relation [tex]R = 8\pi G T[/tex], is it correct to say that the field also couples to [tex]R[/tex]?(adsbygoogle = window.adsbygoogle || []).push({});

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# Does coupling to stress-energy imply coupling to Ricci?

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