Inflation without a trace of lambda

John D. Barrow & Spiros Cotsakis
Abstract: We generalise Einstein’s formulation of the traceless Einstein equations to f(R) gravity theories. In the case of the vacuum traceless Einstein equations, we show that a non-constant Weyl tensor leads via a conformal transformation to a dimensionally homogeneous (‘no-scale’) theory in the conformal frame with a scalar field source that has an exponential potential. We then formulate the traceless version of f(R) gravity, and we find that a conformal transformation leads to a no-scale...
This data repository is not currently reporting usage information. For information on how your repository can submit usage information, please see our documentation.