Geometrical origin of entropy during inflation from STM theory of gravity.
JESÚS MARTÍN ROMERO; MAURICIO BELLINI
PHYSICS LETTERS B
Lugar: Amsterdam; Año: 2008 vol. 669 p. 1 - 1
Starting from a 5D Riemann flat metric, we have induced an effective 4D Hermitian metric which has an antisymmetric part which is purely imaginary. We have worked an example in which both, non-metricity and cotorsion are zero. We obtained that the production of monopoles should be insignificant at the end of inflation and the tensor metric should come asymptotically diagonal and describing a nearly 4D de Sitter expansion.