Preheating of Fermions

Abstract

In inflationary cosmology, the particles constituting the Universe are created after inflation in the process of reheating due to their interaction with the oscillating inflaton field. In the bosonic sector, the leading channel of particle production is the non-perturbative regime of parametric resonance, preheating, during which bosons are created exponentially fast. Pauli blocking prohibits the unbounded creation of fermions. For this reason, it has been silently assumed that the creation of fermions can be treated with perturbation theory for the decay of individual inflatons. We consider the production of fermions interacting with the coherently oscillating inflatons. We find that the actual particle production occurs in a regime of the parametric excitation of fermions, leading to preheating of fermions. Fermion preheating differs significantly from the perturbative expectation. It turns out that the number density of fermions varies periodically with time. The total number of fermions quickly saturates to an average value within a broad range of momenta $\propto q^{1/4}$, where $q$ is the usual resonance parameter. The resonant excitation of fermions may affect the transfer inflaton energy, estimations of the reheating temperature, and the abundance of superheavy fermions and gravitinos. Back in the bosonic sector, outside of the parametric resonance bands there is an additional effect of parametric excitation of bosons with bounded occupation number in the momentum range $\propto q^{1/4}$.

LaTex 5 pages, 6 figs, submitted for publication

References in corpus (1)

• Evolution of the Bianchi I, the Bianchi III and the Kantowski-Sachs Universe: Isotropization and Inflation

Cited by in corpus (174)

• Science Case for the Einstein Telescope
• Inflation Dynamics and Reheating
• Cosmological Backgrounds of Gravitational Waves
• Reheating in Inflationary Cosmology: Theory and Applications
• Nonperturbative Dynamics Of Reheating After Inflation: A Review
• Instant Preheating
• Particle physics models of inflation and curvaton scenarios
• The First Three Seconds: a Review of Possible Expansion Histories of the Early Universe
• Probing Planckian physics: resonant production of particles during inflation and features in the primordial power spectrum
• Stochastic Gravitational Wave Production After Inflation
• Equation of state and Beginning of Thermalization After Preheating
• Preheating with Trilinear Interactions: Tachyonic Resonance
• Gravitino Production After Inflation
• Cosmic phase transitions: their applications and experimental signatures
• Leptogenesis in Inflationary Universe
• Inflation and Preheating in NO models
• Gravity waves and non-Gaussian features from particle production in a sector gravitationally coupled to the inflaton
• Superconformal Symmetry, Supergravity and Cosmology
• Thermal and Non-Thermal Production of Gravitinos in the Early Universe
• Production of Purely Gravitational Dark Matter: The Case of Fermion and Vector Boson
• On the Theory of Fermionic Preheating
• Inflaton Oscillations and Post-Inflationary Reheating
• Spinors, Inflation, and Non-Singular Cyclic Cosmologies
• Consistent generation of magnetic fields in axion inflation models
• Modulated fluctuations from hybrid inflation
• Preheating in Palatini Higgs inflation
• Preheating of massive fermions after inflation: analytical results
• Dynamics of oscillating scalar field in thermal environment
• Simulating fermion production in 1+1 dimensional QED
• The Development of Equilibrium After Preheating
• Emergent scale symmetry: Connecting inflation and dark energy
• The art of simulating the early Universe -- Part I
• Production of spin 3/2 particles from vacuum fluctuations
• Fermion production during and after axion inflation
• Disformal Inflation
• Thermalization after inflation and production of massive stable particles
• Gravitational wave production from preheating: parameter dependence
• Basin of attraction for turbulent thermalization and the range of validity of classical-statistical simulations
• The Art of Lattice and Gravity Waves from Preheating
• Generation of the Higgs Condensate and Its Decay after Inflation
• Lattice formulation of axion inflation. Application to preheating
• The Decay of the Standard Model Higgs after Inflation
• Reheating the Universe After Multi-Field Inflation
• Combined Preheating on the lattice with applications to Higgs inflation
• Real-Time Dynamics with Fermions on a Lattice
• Gravitational Fermion Production in Inflationary Cosmology
• Quantum theory of fermion production after inflation
• CMB constraints on the inflaton couplings and reheating temperature in $\alpha$-attractor inflation
• Resonant Amplification of Gauge Fields in Expanding Universe
• Particle production from symmetry breaking after inflation and leptogenesis
• Preheating after multifield inflation with nonminimal couplings, II: Resonance Structure
• Aspects of Nonlinear Effect on Black Hole Superradiance
• Parametric Resonance in the Early Universe - A Fitting Analysis
• Resonant decay of flat directions
• Inflatonic Solitons In Running Mass Inflation
• WIMPs, FIMPs, and Inflaton phenomenology via reheating, CMB and $\Delta N_{eff}$
• Dynamics of Interacting Scalar Fields in Expanding Space-Time
• Instability-induced fermion production in quantum field theory
• Nonlinear Dynamics of Preheating after Multifield Inflation with Nonminimal Couplings
• Boltzmann or Bogoliubov? Approaches Compared in Gravitational Particle Production
• (P)reheating after minimal Plateau Inflation and constraints from CMB
• Freeze-in from Preheating
• Particle Production and Effective Thermalization in Inhomogeneous Mean Field Theory
• Reheating in supersymmetric high scale inflation
• Inconsistency of an inflationary sector coupled only to Einstein gravity
• From Wires to Cosmology
• On Inflationary Scale, Reheating Scale and Pre-BBN Cosmology with Scalar Fields
• Small Field Polynomial Inflation: Reheating, Radiative Stability and Lower Bound
• Stochastic Background of Gravitational Waves from Fermions -- Theory and Applications
• Gravitational wave production from the decay of the Standard Model Higgs field after inflation
• Inflaton phenomenology via reheating in light of primordial gravitational waves and the latest BICEP/$Keck$ data
• Reheating in the Presence of Inhomogeneous Noise
• Time-Scales for Nonlinear Processes in Preheating after Multifield Inflation with Nonminimal Couplings
• Preheating After Modular Inflation
• Hamilton-Jacobi formalism to warm inflationary scenario
• The exact WKB for cosmological particle production
• Inflaton dark matter from incomplete decay
• Absence of isentropic expansion in various inflation models
• Is nonperturbative inflatino production during preheating a real threat to cosmology?
• Non-thermal cosmic neutrino background
• The Inflaton Portal to a Highly decoupled EeV Dark Matter Particle
• Non-Perturbative Instabilities as a Solution of the Cosmological Moduli Problem
• Gravitino production in hybrid inflationary models
• Cosmological perturbations for an inflaton field coupled to radiation
• Two phase reheating: CMB constraints on inflaton and dark matter phenomenology
• Reheating Closed String Inflation
• Confronting Dark Matter Freeze-In during Reheating with Constraints from Inflation
• A Theory of Self-Resonance After Inflation, Part 1: Adiabatic and Isocurvature Goldstone Modes
• Gravitino and Polonyi production in supergravity
• Stochastic Background of Gravitational Waves from Fermions
• Nonthermal Gravitino Production after Large Field Inflation
• Scenarios of modulated perturbations
• Decaying Superheavy Dark Matter and Subgalactic Structure of the Universe
• Renormalization of the nonequilibrium dynamics of fermions in a flat FRW universe
• Prospects for Direct Detection of Inflationary Gravitational Waves by Next Generation Interferometric Detectors
• Measuring the Inflaton Coupling in the CMB
• Effective action for the Abelian Higgs model in FLRW
• Dynamical Relaxation of the Cosmological Constant and Matter Creation in the Universe
• Post-inflationary thermalization with hadronization scenario
• Gravitational wave production from preheating with trilinear interactions
• Parametric Resonance For Complex Fields
• Lectures on Reheating after Inflation
• The equivalence theorem and the production of gravitinos after inflation
• Einstein-Cartan pseudoscalaron inflation
• Non-minimally coupled curvaton
• SO(10)-GUT Coherent Baryogenesis
• Graviton to Photon Conversion via Parametric Resonance
• Adiabatic regularization with a Yukawa interaction
• The Exact WKB and the Landau-Zener transition for asymmetry in cosmological particle production
• Amplified Fermion Production from Overpopulated Bose Fields
• Brane preheating
• A Theory of Self-Resonance After Inflation, Part 2: Quantum Mechanics and Particle-Antiparticle Asymmetry
• Affleck-Dine leptogenesis via right-handed sneutrino fields in a supersymmetric hybrid inflation model
• Dirac fields in flat FLRW cosmology: Uniqueness of the Fock quantization
• Leptogenesis and rescattering in supersymmetric models
• Inertial mechanism: dynamical mass as a source of particle creation
• Chiral Gravitational Waves from Chiral Fermions
• Generating the primordial curvature perturbations in preheating
• Post-inflationary preheating with weak coupling
• Leptogenesis in a Realistic Supersymmetric Model of Inflation with a Low Reheat Temperature
• Explosive Axion Production from Saxion
• Dark Matter from the Inflaton Field
• V-mode Polarization in Axion Inflation and Preheating
• Enhanced reheating via Bose condensates
• Fermions in Hybrid Loop Quantum Cosmology
• Cosmological Baryon Asymmetry and Neutrinos: Baryogenesis via Leptogenesis in Supersymmetric Theories
• Variable Inflaton Equation of State and Reheating
• Neutrino production in matter with time-dependent density or velocity
• Gravitino production in an inflationary Universe and implications for leptogenesis
• Massive fermion production in nonsingular superstring cosmology
• Phenomenology of the minimal inflation scenario: inflationary trajectories and particle production
• Dark Matter Decaying into a Fermi Sea of Neutrinos
• Perturbative Reheating and Gravitino Production in Inflationary Models
• Out-of-equilibrium evolution of scalar fields in FRW cosmology: renormalization and numerical simulations
• Non-perturbative over-production of axion-like-particles (ALPs) via derivative interaction
• Black Holes as Fermion Factories
• Non-adiabatic quantum effects from a Standard Model time-dependent Higgs vev
• The Exact WKB analysis for asymmetric scalar preheating
• A new take on the inflationary quintessence
• Recrudescence of massive fermion production by oscillons
• Introduction to the number of $e$-folds in slow-roll inflation
• Present and future of CosmoLattice
• Cosmological Relaxation from Dark Fermion Production
• Nonlinear evolution of the momentum dependent condensates in strong interaction: the ``pseudoscalar laser''
• Quantum kinetic theory with nonlocal coherence
• Preheating in Supersymmetric Theories
• Non-thermal Axion Dark Radiation and Constraints
• Stochastic gravitational waves from spin-3/2 fields -- Hunting SUSY in the sky
• On the Expected Backreaction During Preheating
• Supermassive gravitinos, dark matter, leptogenesis and flat direction baryogenesis
• Boltzmann equations for preheating
• Group Theoretic Approach to Fermion Production
• Baryogenesis with the Berry phase
• From (p)reheating to nucleosynthesis
• Preheating in Generalized Einstein Theories
• Gauge Fields Out-Of-Equilibrium: A Gauge Invariant Formulation and the Coulomb Gauge
• Coleman-Weinberg dynamics of ultralight scalar dark matter and GeV-scale right-handed neutrinos
• Unstable Heavy Majorana Neutrinos and Leptogenesis
• Inflation
• Out of Equilibrium Dynamics of Supersymmetry at High Energy Density
• Physical scale adiabatic regularization in cosmological spacetimes
• Constraining the primordial spectrum of metric perturbations from gravitino and moduli production
• Dynamics of O(N) chiral supersymmetry at finite energy density
• High frequency gravitational waves from spin-3/2 fields
• Gravitino production during preheating
• Probing baryogenesis with gravitational waves
• Non-perturbative reheating and Nnaturalness
• Postsphaleron darkogenesis
• Misalignment dynamics of Scalar Condensates with Yukawa coupling: Particle and Entropy Production
• Neutrino production in a time-dependent matter background
• Stable dark matter from Pauli blocking in the degenerate fermion background with Quantum Field Theory
• Fermionic Particle Creation in Curved Spacetime: Physical Bloch-Vector Dynamics and Exact de Sitter Scaling
• Fermion (non)reheating with a quartic inflaton potential
• Decay of a scalar condensate in two different approaches