TY  - JOUR
AU  - Borrajo Gutierrez, Daniel
AU  - Ruiz Cembranos, José Alberto
AU  - Garay Elizondo, Luis Javier
AU  - Sánchez Velázquez, José Manuel
PY  - 2020
DO  - 10.1007/JHEP09(2020)069
SN  - 1029-8479
UR  - https://hdl.handle.net/20.500.14352/6651
T2  - Journal of high energy physics
AB  - Gravitational particle production in the early universe is due to the coupling of matter fields to curvature. This coupling may include derivative terms that modify the kinetic term. The most general first order action contains derivative couplings to...
LA  - eng
PB  - Springer
KW  - Bogoliubov transformations
TI  - Derivative couplings in gravitational production in the early universe
TY  - journal article
ER  -