Preheating in Full General Relativity

Abstract

We investigate the importance of local gravity during preheating, the non-linear dynamics that may be responsible for starting the process of reheating the universe after inflation. We introduce three numerical methods that study a simple preheating scenario while relaxing gravitational assumptions, culminating in studying the process in full numerical relativity. We confirm that perturbation theory is no longer valid when one considers modes whose wavelengths are comparable to the size of the horizon at the end of inflation; however, this breakdown does not necessarily lead to a breakdown of the preheating process in non-linear gravity. For the specific model we test we find no evidence for the creation of primordial black holes from the instabilities in this model. Finally, we remark on the opportunity for future numerical study of non-linear gravitational dynamics in the early universe.

arXiv comment12 pages + appendices, 11 figures; minor typographical changes to match published version

References in corpus (68)

• Cosmological Perturbation Theory in the Synchronous and Conformal Newtonian Gauges
• Cosmological Perturbation Theory in the Synchronous vs. Conformal Newtonian Gauge
• Evolution of Binary Black Hole Spacetimes
• Accurate Evolutions of Orbiting Black-Hole Binaries Without Excision
• Gravitational wave extraction from an inspiraling configuration of merging black holes
• On the Numerical Integration of Einstein's Field Equations
• Dynamics of Symmetry Breaking and Tachyonic Preheating
• Nonperturbative Dynamics Of Reheating After Inflation: A Review
• Tachyonic Instability and Dynamics of Spontaneous Symmetry Breaking
• Preheating with Trilinear Interactions: Tachyonic Resonance
• Magnetogenesis from axion inflation
• Parametric Amplification of Metric Fluctuations During Reheating in Two Field Models
• General Relativistic effects in preheating
• Metric preheating and limitations of linearized gravity
• Beginning inflation in an inhomogeneous universe
• Dynamics of tachyonic preheating after hybrid inflation
• Gravity Waves from Tachyonic Preheating after Hybrid Inflation
• GRChombo : Numerical Relativity with Adaptive Mesh Refinement
• Numerical simulations of generic singuarities
• Gravitational perturbations from oscillons and transients after inflation
• Magnetic field production during preheating at the electroweak scale
• Nongaussian and nonscale-invariant perturbations from tachyonic preheating in hybrid inflation
• Effects of nonlinear inhomogeneity on the cosmic expansion with numerical relativity
• Massless Metric Preheating
• Departures from the FLRW Cosmological Model in an Inhomogeneous Universe: A Numerical Examination
• DEFROST: A New Code for Simulating Preheating after Inflation
• Collapse of Small-Scale Density Perturbations during Preheating in Single Field Inflation
• Restoring the sting to metric preheating
• The Art of Lattice and Gravity Waves from Preheating
• Cosmological perturbation with two scalar fields in reheating after inflation
• Nonlinear Inflaton Fragmentation after Preheating
• Preheating after multifield inflation with nonminimal couplings, III: Dynamical spacetime results
• Reheating the Universe After Multi-Field Inflation
• Inflationary preheating and primordial black holes
• Delayed Reheating and the Breakdown of Coherent Oscillations
• Particle production from symmetry breaking after inflation and leptogenesis
• Evolution of Cosmological Perturbation in Reheating Phase of the Universe
• Inhomogeneous Cosmology with Numerical Relativity
• Spacetime Dynamics of a Higgs Vacuum Instability During Inflation
• Einstein's Universe: Cosmological structure formation in numerical relativity
• Generation of gravitational waves during early structure formation between cosmic inflation and reheating
• Are black holes over-produced during preheating?
• Primordial magnetic fields from preheating at the electroweak scale
• Preheating with Non-Minimal Kinetic Terms
• Observable Deviations from Homogeneity in an Inhomogeneous Universe
• When can preheating affect the CMB?
• Robustness of Inflation to Large Tensor Perturbations
• Gravity, Parametric Resonance and Chaotic Inflation
• Cauchy boundaries in linearized gravitational theory
• Tachyonic Resonance Preheating in Expanding Universe
• The trouble with Hubble: Local versus global expansion rates in inhomogeneous cosmological simulations with numerical relativity
• Comparing Fully General Relativistic and Newtonian Calculations of Structure Formation
• Preheating After Modular Inflation
• Non-Abelian gauge preheating
• Black hole production in tachyonic preheating
• The Limited Accuracy of Linearized Gravity
• The Fate of Dense Scalar Stars
• Gravitational waves from non-Abelian gauge fields at a tachyonic transition
• On the Suppression of Parametric Resonance and the Viability of Tachyonic Preheating after Multi-Field Inflation
• General Relativistic Corrections to the Weak Lensing Convergence Power Spectrum
• A Bumpy Start to a Smooth Ride: Onset of Inflation amid Backreaction from Inhomogeneities
• Parametric resonance after hilltop inflation caused by an inhomogeneous inflaton field
• A Simple Family of Analytical Trumpet Slices of the Schwarzschild Spacetime
• An automatically generated code for relativistic inhomogeneous cosmologies
• A cosmologically motivated reference formulation of numerical relativity
• Non-linear Preheating with Scalar Metric Perturbations
• Non-linear metric perturbation enhancement of primordial gravitational waves
• Numerical Relativity Investigation of the Effects of Gravitational Waves on the Inhomogeneity of the Universe

Cited by in corpus (31)

• Challenges and Opportunities of Gravitational Wave Searches at MHz to GHz Frequencies
• The First Three Seconds: a Review of Possible Expansion Histories of the Early Universe
• Constraining axion inflation with gravitational waves from preheating
• The art of simulating the early Universe -- Part I
• CosmoLattice
• Constraining axion inflation with gravitational waves across 29 decades in frequency
• Lighting the Dark: The Evolution of the Post-Inflationary Universe
• Energy distribution and equation of state of the early Universe: matching the end of inflation and the onset of radiation domination
• Boltzmann or Bogoliubov? Approaches Compared in Gravitational Particle Production
• Freeze-in from Preheating
• Scalar Dark Matter Production from Preheating and Structure Formation Constraints
• Time-Scales for Nonlinear Processes in Preheating after Multifield Inflation with Nonminimal Couplings
• Oscillon formation during inflationary preheating with general relativity
• Beyond Schrödinger-Poisson: Nonrelativistic Effective Field Theory for Scalar Dark Matter
• Challenges and Opportunities of Gravitational Wave Searches above 10 kHz
• Inhomogeneous initial conditions for inflation: A wibbly-wobbly timey-wimey path to salvation
• CTTK: A new method to solve the initial data constraints in numerical relativity
• Gravitational Waves from Fully General Relativistic Oscillon Preheating
• Stochastic Inflation in General Relativity
• Gauge preheating with full general relativity
• Gravitational dynamics in Higgs inflation: Preinflation and preheating with an auxiliary field
• Oscillons during Dirac-Born-Infeld Preheating
• Cosmology using numerical relativity
• (P)reheating and gravitational waves in $\alpha$-attractor models
• Present and future of CosmoLattice
• First investigation of void statistics in numerical relativity simulations
• Post-inflationary structure formation boosted by parametric self-resonance
• Populating the landscape in an inhomogeneous universe
• Bunch-Davies initial conditions and non-perturbative inflationary dynamics in Numerical Relativity
• Potential Surge Preheating: enhanced resonance from potential features
• Nonlinear Lattice Framework for Inflation: Bridging stochastic inflation and the $\delta N$ formalism