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• W2013146524 abstract "We show that the effective brane-world and the loop quantum cosmology background expansion histories can be reproduced from a modified gravity perspective in terms of an f(R) gravity action plus a g(R) term non-minimally coupled with the matter Lagrangian. The reconstruction algorithm that we provide depends on a free function of the matter density that must be specified in each case and allows to obtain analytical solutions always. In the simplest cases, the function f(R) is quadratic in the Ricci scalar, R, whereas g(R) is linear. Our approach is compared with recent results in the literature. We show that working in the Palatini formalism there is no need to impose any constraint that keeps the equations second-order, which is a key requirement for the successful implementation of the reconstruction algorithm." @default.
• W2013146524 created "2016-06-24" @default.
• W2013146524 creator A5047009759 @default.
• W2013146524 creator A5048391593 @default.
• W2013146524 date "2015-01-01" @default.
• W2013146524 modified "2023-09-24" @default.
• W2013146524 title "Brane-world and loop cosmology from a gravity–matter coupling perspective" @default.
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• W2013146524 doi "https://doi.org/10.1016/j.physletb.2014.11.034" @default.
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