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- W2952570856 abstract "We present some phenomenological aspects of the pre-big-bang cosmological model inspired by the duality properties of string theory. In particular, assuming the spatial sections of the homogeneous background geometry to be isotropic, we discuss the quantum production of perturbations of the background fields (gravitons, dilatons, moduli fields), as well as the production of particles which do not contribute to the background, which we call “seeds”. As such we consider the cases of electromagnetic and axionic seeds. We also discuss their possible observational consequences, for example, we study whether they can provide the origin of primordial galactic magnetic fields, and whether they can generate the initial fluctuations leading to the formation of large-scale structure and the measured cosmic microwave background anisotropies. We finally analyze axion and photon production in four dimensional anisotropic pre-big-bang cosmological models." @default.
- W2952570856 created "2019-06-27" @default.
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- W2952570856 date "2002-10-01" @default.
- W2952570856 modified "2023-09-27" @default.
- W2952570856 title "Particle creation in pre-big-bang cosmology" @default.
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- W2952570856 doi "https://doi.org/10.1016/s1387-6473(02)00235-x" @default.
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