Arciniega, GustavoEdelstein Glaubach, José DanielJaime, Luisa G.2020-04-292020-04-292020Gustavo Arciniega, José D. Edelstein, Luisa G. Jaime, Towards geometric inflation: The cubic case, Physics Letters B, Volume 802, 2020, 135272, ISSN 0370-2693, https://doi.org/10.1016/j.physletb.2020.1352720370-2693http://hdl.handle.net/10347/21870We present an up to cubic curvature correction to General Relativity with the following features: (i) its vacuum spectrum solely consists of a graviton, (ii) it possesses well-behaved black hole solutions which coincide with those of Einsteinian cubic gravity, (iii) its cosmology is well-posed as an initial value problem and, most importantly, (iv) it entails a geometric mechanism triggering an inflationary period in the early universe (driven by radiation) with a graceful exit to a late-time cosmology arbitrarily close to ΛCDM.eng© 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).https://creativecommons.org/licenses/by/4.0/Higher-curvature gravityEinsteinian Cubic Gravityjournal article10.1016/j.physletb.2020.1352721873-2445open access