QFT approach to dressed particle processes in preheating and non-perturbative mechanism in kinematically-forbidden regime
arXiv:2207.03831 · doi:10.1007/JHEP02(2023)048
Abstract
We provide a quantum-field theoretic formulation of dressed particle dynamics that systematically include particle production and scattering/decay processes in the preheating era. Our approach is based on the so-called perturbation theory in the Furry picture, in which coherent background fields (i.e., inflaton and the expanding Universe) are treated non-perturbatively whereas interactions between dressed particles are taken into account perturbatively. As application, we consider the instant preheating mechanism and compute the number of produced particles explicitly, assuming that the coherent fields are adiabatic. We find a novel non-perturbative particle-production mechanism, which is kinematically forbidden within the conventional perturbative calculation and produces particles exponentially efficiently than the perturbative one does.
arXiv comment30 pages, 5 figures, v2:comments added, typos fixed, v3: comments added
References in corpus (48)
- Towards the Theory of Reheating After Inflation
- Reheating after Inflation
- Extremely high-intensity laser interactions with fundamental quantum systems
- Inflation Dynamics and Reheating
- Quantum Contributions to Cosmological Correlations
- Universe Reheating after Inflation
- Landau-Zener-Stuckelberg interferometry
- Reheating in Inflationary Cosmology: Theory and Applications
- Nonperturbative Dynamics Of Reheating After Inflation: A Review
- Superheavy dark matter
- Classical decay of inflaton
- Dynamically assisted Schwinger mechanism
- Instant Preheating
- Momentum signatures for Schwinger pair production in short laser pulses with a sub-cycle structure
- Lattice study of classical inflaton decay
- Inflation and Preheating in NO models
- Catalysis of Schwinger Vacuum Pair Production
- The Stokes Phenomenon and Schwinger Vacuum Pair Production in Time-Dependent Laser Pulses
- The Universe after inflation: the wide resonance case
- Resonant decay of Bose condensates
- Interference Effects in Schwinger Vacuum Pair Production for Time-Dependent Laser Pulses
- Enhanced subthreshold electron-positron production in short laser pulses
- Catastrophic Particle Production under Periodic Perturbation
- Classical inflaton field induced creation of superheavy dark matter
- Complex Worldline Instantons and Quantum Interference in Vacuum Pair Production
- Super-Adiabatic Particle Number in Schwinger and de Sitter Particle Production
- On the Time Dependence of Adiabatic Particle Number
- Schwinger Vacuum Pair Production in Chirped Laser Pulses
- Exact WKB analysis of the vacuum pair production by time-dependent electric fields
- Dynamical Schwinger effect and high-intensity lasers. Realising nonperturbative QED
- The exact WKB for cosmological particle production
- BBGKY kinetic approach for an e-e+gamma plasma created from the vacuum in a strong laser-generated electric field: The one-photon annihilation channel
- Franz-Keldysh effect in strong-field QED
- Stokes phenomenon and gravitational particle production -- How to evaluate it in practice
- Spin-dependent dynamically assisted Schwinger mechanism
- Dynamically assisted Schwinger mechanism and chirality production in parallel electromagnetic field
- Photon emission in strong fields beyond the locally-constant field approximation
- The Exact WKB and the Landau-Zener transition for asymmetry in cosmological particle production
- Analytical WKB theory for high-harmonic generation and its application to massive Dirac electrons
- Afterglow of the dynamical Schwinger process: soft photons amass
- Superadiabatic basis in cosmological particle production: application to preheating
- An analytic evaluation of gravitational particle production of fermions via Stokes phenomenon
- Electromagnetic currents induced by color fields
- Radiation signal accompanying the Schwinger effect
- The Exact WKB analysis and the Stokes phenomena of the Unruh effect and Hawking radiation
- The Exact WKB analysis for asymmetric scalar preheating
- Stimulated vacuum emission and photon absorption in strong electromagnetic fields
- Mutual assistance between the Schwinger mechanism and the dynamical Casimir effect