Schwinger Mechanism During Inflation
arXiv:1903.05310 · doi:10.1103/PhysRevD.99.103525
Abstract
We revisit the efficiency of Schwinger mechanism in creating charged pairs during inflation. We consider a minimal setup of inflation in which the inflaton field is a complex scalar field charged under a gauge field. There is a time dependent conformal coupling which pumps energy from the inflaton field to the gauge field to furnish a nearly constant background electric field energy density to drive the Schwinger mechanism. The coupling between the gauge field and the scalar field induces a time dependent effective mass for the inflaton field. The requirement of a long period of slow-roll inflation causes the Schwinger mechanism to be highly inefficient during inflation. The non-perturbative Schwinger mechanism can be relevant only towards the end of inflation and only on very small scales. This is in contrast to hypothetical models studied in literature in which the complex scalar field is a test field and a constant electric field is imposed on the dS background by hand. We calculate the number of pairs of charged particles created perturbatively during inflation. We show that it is proportional to the amplitude of the quadrupolar statistical anisotropy and it is very small. Consequently, the back-reactions of created particles on magnetogenesis on large scales are negligible.
arXiv comment23 pages, 3 figures, matches published version in PRD
References in corpus (51)
- Quantum Contributions to Cosmological Correlations
- Adiabatic and entropy perturbations from inflation
- Quasi-Single Field Inflation and Non-Gaussianities
- Inflationary Universe with Anisotropic Hair
- The anisotropic power spectrum and bispectrum in the f(phi) F^2 mechanism
- Catalysis of Schwinger Vacuum Pair Production
- The Nature of Primordial Fluctuations from Anisotropic Inflation
- Schwinger mechanism revisited
- Barrier control in tunneling e^+ e^- photoproduction
- Limits on anisotropic inflation from the Planck data
- Schwinger Effect in 4D de Sitter Space and Constraints on Magnetogenesis in the Early Universe
- Inflationary Perturbations: the Cosmological Schwinger Effect
- Rolling axions during inflation: perturbativity and signatures
- Schwinger effect in de Sitter space
- Nucleation Rates in Flat and Curved Space
- Anisotropic Inflation from Charged Scalar Fields
- Challenges in Inflationary Magnetogenesis: Constraints from Strong Coupling, Backreaction and the Schwinger Effect
- Holographic Schwinger effect in de Sitter space
- Fermionic current and Schwinger effect in de Sitter spacetime
- Fermionic Schwinger effect and induced current in de Sitter space
- Schwinger Pair Production in dS_2 and AdS_2
- δN Formalism in Anisotropic Inflation and Large Anisotropic Bispectrum and Trispectrum
- Creation of spin 1/2 particles by an electric field in de Sitter space
- Dynamically assisted Sauter-Schwinger effect - non-perturbative versus perturbative aspects
- Schwinger Effect by an Gauge Field during Inflation
- Early Cosmological Evolution of Primordial Electromagnetic Fields
- Dynamics of Relaxed Inflation
- Influence of backreaction of electric fields and Schwinger effect on inflationary magnetogenesis
- Scalar current of created pairs by Schwinger mechanism in de Sitter spacetime
- Curvature Perturbations in Anisotropic Inflation with Symmetry Breaking
- Nonlinear perturbations from the coupling of the inflaton to a non-Abelian gauge field, with a focus on Chromo-Natural Inflation
- Multifaceted Schwinger effect in de Sitter space
- Point splitting renormalization of Schwinger induced current in de Sitter spacetime
- Primordial Anisotropies in Gauged Hybrid Inflation
- The TT, TB, EB and BB correlations in anisotropic inflation
- Schwinger Effect in Inflaton-Driven Electric Field
- Franz-Keldysh effect in strong-field QED
- The charged inflaton and its gauge fields: preheating and initial conditions for reheating
- Schwinger effect impacting primordial magnetogenesis
- Vacuum birefringence and the Schwinger effect in (3+1) de Sitter
- Physical renormalization condition for de Sitter QED
- Schwinger Pair Production by Electric Field Coupled to Inflaton
- Role of gravity in the pair creation induced by electric fields
- Fermion production in a magnetic field in a de Sitter Universe
- Spectator electric fields, de Sitter space-time and the Schwinger effect
- Fermion production in Coulomb field on de Sitter universe
- Perturbative methods for assisted nonperturbative pair production
- Creation of Dirac Particles in the Presence of a Constant Electric Field in an Anisotropic Bianchi I Universe
- Creation of scalar particles in the presence of a constant electric field in an anisotropic cosmological universe
- Charged Vector Inflation
- Reconstruction of a direction-dependent primordial power spectrum from Planck CMB data
Cited by in corpus (27)
- Gauge-field production during axion inflation in the gradient expansion formalism
- Exact WKB analysis of the vacuum pair production by time-dependent electric fields
- Vector dark matter production from inflation with symmetry breaking
- The exact WKB for cosmological particle production
- Production and Backreaction of Fermions from Axion- Gauge Fields during Inflation
- Hypermagnetogenesis from axion inflation: Model-independent estimates
- Revisiting Magnetogenesis during Inflation
- Dynamically assisted Schwinger mechanism and chirality production in parallel electromagnetic field
- Dark photon dark matter from charged inflaton
- Kinetic approach to the Schwinger effect during inflation
- The Exact WKB and the Landau-Zener transition for asymmetry in cosmological particle production
- Inflation with multiple vector fields and non-Gaussianities
- Model-independent constraints in inflationary magnetogenesis
- Schwinger production of scalar particles during and after inflation from the first principles
- Primordial Magnetogenesis in a Bouncing Universe
- Adiabatic regularization for Dirac fields in time-varying electric backgrounds
- Helical magnetic fields from Riemann coupling lead to baryogenesis
- Chirality production during axion inflation
- No-go theorem of anisotropic inflation via Schwinger mechanism
- Astrophysics in Strong Electromagnetic Fields and Laboratory Astrophysics
- Canonical equivalence, quantization and anisotropic inflation in higher order theory of gravity
- Quantum kinetic approach to the Schwinger production of scalar particles in an expanding universe
- Mutual assistance between the Schwinger mechanism and the dynamical Casimir effect
- Induced energy-momentum tensor of Dirac field in 2D de Sitter QED
- Induced energy-momentum tensor in de Sitter scalar QED and its implication for induced current
- Energy-momentum tensor and effective Lagrangian of scalar QED with a nonminimal coupling in 2D de Sitter spacetime
- Primordial magnetogenesis in a bouncing model with dark energy