Coupled fields in external background with application to nonthermal production of gravitinos

Abstract

We provide the formalism for the quantization of systems of coupled bosonic and fermionic fields in a time dependent classical background. The occupation numbers of the particle eigenstates can be clearly defined and computed, through a generalization of the standard procedure valid for a single field in which Bogolyubov coefficients are employed. We apply our formalism to the problem of nonthermal gravitino production in a two-fields model where supersymmetry is broken gravitationally in the vacuum. Our explicit calculations show that this production is strongly suppressed in the model considered, due to the weak coupling between the sector which drives inflation and the one responsible for supersymmetry breakdown.

Final version; 40 pages, 8 figures

Cited by in corpus (99)

• Inflation Dynamics and Reheating
• A lower bound on the right-handed neutrino mass from leptogenesis
• Reheating in Inflationary Cosmology: Theory and Applications
• Features of heavy physics in the CMB power spectrum
• Particle physics models of inflation and curvaton scenarios
• Gravitational Baryogenesis
• MSSM flat direction inflation: slow roll, stability, fine tunning and reheating
• Equation of state and Beginning of Thermalization After Preheating
• Cosmic phase transitions: their applications and experimental signatures
• Gravity waves and non-Gaussian features from particle production in a sector gravitationally coupled to the inflaton
• Scalar-Scalar, Scalar-Tensor, and Tensor-Tensor Correlators from Anisotropic Inflation
• Gravitino Overproduction in Inflaton Decay
• Production of Purely Gravitational Dark Matter: The Case of Fermion and Vector Boson
• Mass hierarchies and non-decoupling in multi-scalar field dynamics
• Inflaton Decay in Supergravity
• The Gravitino-Overproduction Problem in Inflationary Universe
• Nonlinear stability of cosmological solutions in massive gravity
• Nonthermal production of gravitinos and inflatinos
• Thermalization after inflation and production of massive stable particles
• Prethermalization Production of Dark Matter
• Supersymmetry, Axions and Cosmology
• Post-Inflationary Gravitino Production Revisited
• Flavored Quantum Boltzmann Equations
• Cosmological Perturbations in Extended Massive Gravity
• Gravitational Fermion Production in Inflationary Cosmology
• A Minimal Model of Gravitino Dark Matter
• Gauge-flation confronted with Planck
• Low & High scale MSSM inflation, gravitational waves and constraints from Planck
• Supersymmetric Thermalization and Quasi-Thermal Universe: Consequences for Gravitinos and Leptogenesis
• Cosmology with orthogonal nilpotent superfields
• Inflatonic Solitons In Running Mass Inflation
• From weak-scale observables to leptogenesis
• Instability-induced fermion production in quantum field theory
• Inflatino-less Cosmology
• Freeze-in from Preheating
• Reheating in supersymmetric high scale inflation
• Catastrophic Production of Slow Gravitinos
• Particle number in kinetic theory
• Leptogenesis Via Neutrino Production During Higgs Condensate Relaxation
• The Inflatino Problem in Supergravity Inflationary Models
• Gravitino Problem in Minimal Supergravity Inflation
• The Fate of SUSY Flat Directions and their Role in Reheating
• Mixed Non-Gaussianity from Axion-Gauge Field Dynamics
• Longevity of supersymmetric flat directions
• One-loop infrared rescattering by enhanced scalar fluctuations during inflation
• Slow and Safe Gravitinos
• Nonthermal Gravitino Production after Large Field Inflation
• D-term Inflation and Leptogenesis by Right-handed Sneutrino
• Dynamics of coupled bosonic systems with applications to preheating
• The nonperturbative decay of SUSY flat directions
• The effects of a fast-turning trajectory in multiple-field inflation
• Leptogenesis from a sneutrino condensate revisited
• Affleck-Dine condensate, late thermalization and the gravitino problem
• Curvature Perturbations from a Massive Vector Curvaton
• Moduli from Cosmic Strings
• Non-thermal leptogenesis with almost degenerate superheavy neutrinos
• Gravitino production from reheating in split supersymmetry
• The flavor vacuum in the expanding universe and dark matter
• Horava-Lifshitz gravity with $\lambda \to \infty$
• Salvage of Too Slow Gravitinos
• Non-Perturbative Flat Direction Decay
• Minimal Supergravity Inflation without Slow Gravitino
• Multi-field formulation of gravitational particle production after inflation
• Fermion production from preheating-amplified metric perturbations
• Leptogenesis and rescattering in supersymmetric models
• SUSY Flat Direction Decay - the prospect of particle production and preheating investigated in the unitary gauge
• Boosting GWs in Supersolid Inflation
• Possible astrophysical signatures of heavy stable neutral relics in supergravity models
• Sleptogenesis
• Out-of-equilibrium evolution of quantum fields in the hybrid model with quantum back reaction
• Supergravity Inflation Free from Harmful Relics
• Massive fermion production in nonsingular superstring cosmology
• Perturbative Reheating and Gravitino Production in Inflationary Models
• Non-perturbative over-production of axion-like-particles (ALPs) via derivative interaction
• Coupled scalar fields in a flat FRW universe: renormalisation
• Gravitino Problem in Inflation Driven by Inflaton-Polonyi Kähler Coupling
• Non-perturbative production of fermionic dark matter from fast preheating
• Chromo-natural inflation supported by enhanced friction from Horndeski gravity
• Flat directions, doublet-triplet splitting, the monopole problem, and all that
• Non-perturbative decay of udd and QLd flat directions
• Reviving chaotic inflation with fermion production: a supergravity model
• Baryogenesis from the amplification of vacuum fluctuations during inflation
• Heavy Gravitino and Split SUSY in the Light of BICEP2
• Consistent cosmology with Higgs thermal inflation in a minimal extension of the MSSM
• Statistically-Anisotropic Tensor Bispectrum from Inflation
• Non-Equilibrium Large N Yukawa Dynamics: marching through the Landau pole
• Quantum back-reaction of the superpartners in a large-N supersymmetric hybrid model
• Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the string-theoretical Swampland Programme
• Constrained Superfields in Dynamical Background
• Higgs-Squark-Slepton Inflation from the MSSM
• Constraining the primordial spectrum of metric perturbations from gravitino and moduli production
• Inflation and Leptogenesis in a $U(1)$-enhanced supersymmetric model
• Initial time singularities and admissible initial states for a system of coupled scalar fields
• Supersymmetric flat directions and resonant gravitino production
• Positivity vs. Lorentz-violation: an explicit example
• Particle production with L-R neutrino oscillation
• Inflation in a scalar-vector gravity theory
• Primordial gravitational waves from excited states
• Fermion (non)reheating with a quartic inflaton potential