TY  - JOUR
AU  - Barenboim, G.
AU  - Vives, O.
PY  - 2015
DA  - 2015//
TI  - Transplanckian inflation as gravity echoes
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 336
EP  - 342
VL  - 748
PB  - Elsevier Science Bv
AB  - In this work, we show that, in the presence of non-minimal coupling to gravity, it is possible to generate sizeable tensor modes in single-field models without transplanckian field values. These transplanckian field values apparently needed in Einstein gravity to accommodate the experimental results may only be due to our insistence of imposing a minimal coupling of the inflaton field to gravity in a model with non-minimal couplings. We present three simple single-field models that prove that it is possible to accommodatea large tensor-to-scalar ratio without requiring transplanckian field values within the slow-roll regime.
SN  - 0370-2693
UR  - http://arxiv.org/abs/1405.6498
UR  - https://doi.org/10.1016/j.physletb.2015.07.018
DO  - 10.1016/j.physletb.2015.07.018
LA  - English
N1  - WOS:000359146200050
ID  - Barenboim+Vives2015
ER  -