INVESTIGADORES
GANGUI Alejandro
capítulos de libros
Título:
Non-vacuum initial states for the cosmological perturbations and the back--reaction problem of inflation
Autor/es:
ALEJANDRO GANGUI; JEROME MARTIN; MAIRI SAKELLARIADOU
Libro:
The Cosmological Model
Editorial:
Thê Gió'i Publishers
Referencias:
Lugar: Vietnam; Año: 2003; p. 229 - 232
Resumen:
In the framework of Inflationary theory, the assumption that the quantum state of the perturbations is a non-vacuum state leads to a difficulty: non-vacuum initial states imply, in general, a large energy density of inflaton field quanta, not of a cosmological term type, that could prevent the inflationary phase. In this short note, we discuss in detail why this is so, keeping an eye on possible non-Gaussian features due to considering generic non-vacuum initial states.
