Production of spin 1/2 fermions and gravitinos by the standard mechanism of amplification of quantum fluctuations during the dilaton-driven inflation phase in models of string cosmology is highly suppressed. Constraints on string cosmology models from gravitational production of gravitinos, contrary to expectations, are similar to constraints on other models
We reconsider post-inflation gravitino production, in the context of hidden sector supergravity mode...
International audienceIt is well-known that the number of particles produced in cosmology, commonly ...
Particle creation during inflation is considered. It could be important for species whose interactio...
We study massive spin-1/2 fermion production in nonsingular superstring cosmology, taking into accou...
We study the production of gravitinos during the preheating era after inflation by means of the non-...
We investigate the production of gravitinos in a cosmological background. Gravitinos can be produced...
We provide the formalism for the quantization of systems of coupled bosonic and fermionic fields in ...
We study the production of spin 3/2 particles in homogeneous scalar and gravitational backgrounds us...
It has been argued that supergravity models of inflation with vanishing sound speeds, cs, lead to an...
The origin of dark matter in the universe may be weakly interacting scalar particles produced by amp...
We consider the production of gravitinos and moduli fields from quantum vacuum fluctuations induced ...
We discuss some aspects of string cosmology with an emphasis on the role played by the dilaton. A co...
We consider the coupled evolution of density, (scalar) metric and dilaton perturbations in the trans...
We show that if there is a realistic 4-d string, the dilaton and moduli supermultiplets will generic...
A string cosmology scenario ("pre-big-bang") postulates that the evolution of the Universe starts fr...
We reconsider post-inflation gravitino production, in the context of hidden sector supergravity mode...
International audienceIt is well-known that the number of particles produced in cosmology, commonly ...
Particle creation during inflation is considered. It could be important for species whose interactio...
We study massive spin-1/2 fermion production in nonsingular superstring cosmology, taking into accou...
We study the production of gravitinos during the preheating era after inflation by means of the non-...
We investigate the production of gravitinos in a cosmological background. Gravitinos can be produced...
We provide the formalism for the quantization of systems of coupled bosonic and fermionic fields in ...
We study the production of spin 3/2 particles in homogeneous scalar and gravitational backgrounds us...
It has been argued that supergravity models of inflation with vanishing sound speeds, cs, lead to an...
The origin of dark matter in the universe may be weakly interacting scalar particles produced by amp...
We consider the production of gravitinos and moduli fields from quantum vacuum fluctuations induced ...
We discuss some aspects of string cosmology with an emphasis on the role played by the dilaton. A co...
We consider the coupled evolution of density, (scalar) metric and dilaton perturbations in the trans...
We show that if there is a realistic 4-d string, the dilaton and moduli supermultiplets will generic...
A string cosmology scenario ("pre-big-bang") postulates that the evolution of the Universe starts fr...
We reconsider post-inflation gravitino production, in the context of hidden sector supergravity mode...
International audienceIt is well-known that the number of particles produced in cosmology, commonly ...
Particle creation during inflation is considered. It could be important for species whose interactio...