Baryon Isocurvature Perturbation in the Affleck-Dine Baryogenesis mechanism

Abstract

We propose a primeval baryon isocurvature model in the context of the Affleck-Dine (AD) baryogenesis mechanism. Quantum fluctuations of the AD field during inflation produce fluctuations in the baryon number. We obtain a model which gives both the appropriate baryon to entropy ratio of the order $10^{-11}$ and the gaussian baryon isocurvature perturbation of the order $10^{-3}$ at the break of the spectrum 1 Mpc with the steep spectrum $n=-1.5$ on large scales >1 Mpc.

4 pages, no figures, accepted for publication in Phys.Rev.Lett

References in corpus (1)

• Nongaussian Isocurvature Perturbations from Inflation

Cited by in corpus (11)

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• CMB spectral distortions from small-scale isocurvature fluctuations
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• Observational implications of mattergenesis during inflation
• Constraints on scalar and tensor perturbations in phenomenological and two-field inflation models: Bayesian evidences for primordial isocurvature and tensor modes
• Adiabatic out-of-equilibrium solutions to the Boltzmann equation in warm inflation
• Affleck-Dine baryogenesis via mass splitting
• Entropy production and curvature perturbation from dissipative curvatons
• Aspects of warm-flat directions
• Baryon Asymmetries in the Natural Inflation Model