Pre-inflation and Trans-Planckian Censorship
arXiv:1909.12719 · doi:10.1007/s11433-020-1573-5
Abstract
We investigate the implication of Trans-Planckian Censorship Conjecture (TCC) for the initial state of primordial perturbations. It is possible to set the state of perturbation modes in the infinite past as the Minkowski vacuum, only if the pre-inflationary era is past-complete. We calculate the evolution of the perturbation modes in such a pre-inflationary era and show that at the beginning of inflation the perturbation modes with wavelengths much shorter than the Hubble scale (but still larger than the Planck length scale) will behave as they are in the Bunch-Davis state. Therefore, a past-complete pre-inflationary evolution may automatically prepare the initial state required for the inflationary perturbations at the CMB window while obeying the TCC.
arXiv comment22 pages, 4 figures; references added; updated to match published version
References in corpus (69)
- Planck 2015 results. XIII. Cosmological parameters
- The Ekpyrotic Universe: Colliding Branes and the Origin of the Hot Big Bang
- The Trans-Planckian Problem of Inflationary Cosmology
- Distance and de Sitter Conjectures on the Swampland
- Inflationary spacetimes are not past-complete
- Horndeski theory and beyond: a review
- On the Cosmological Implications of the String Swampland
- Starting the Universe: Stable Violation of the Null Energy Condition and Non-standard Cosmologies
- Towards a Nonsingular Bouncing Cosmology
- Eternal inflation and the initial singularity
- The Robustness of Inflation to Changes in Super-Planck-Scale Physics
- Dark Energy and Modified Gravity in Degenerate Higher-Order Scalar-Tensor (DHOST) theories: a review
- G-Bounce
- Bouncing Universe with Quintom Matter
- A Nonsingular Cosmology with a Scale-Invariant Spectrum of Cosmological Perturbations from Lee-Wick Theory
- Bouncing Galileon Cosmologies
- Suppressing CMB Quadrupole with a Bounce from Contracting Phase to Inflation
- Generic instabilities of non-singular cosmologies in Horndeski theory: a no-go theorem
- A Cosmological Super-Bounce
- Classically stable non-singular cosmological bounces
- The Effective Field Theory of nonsingular cosmology
- No smooth beginning for spacetime
- Generalized Galileons: instabilities of bouncing and Genesis cosmologies and modified Genesis
- Inflation, Cosmic Perturbations and Non-Gaussianities
- Two Field Matter Bounce Cosmology
- Obtaining the CMB anomalies with a bounce from the contracting phase to inflation
- Fully stable cosmological solutions with a non-singular classical bounce
- Towards Anisotropy-Free and Non-Singular Bounce Cosmology with Scale-invariant Perturbations
- Matter Bounce Loop Quantum Cosmology from Gravity
- Cosmological Perturbations Through a Non-Singular Ghost-Condensate/Galileon Bounce
- The Real No-Boundary Wave Function in Lorentzian Quantum Cosmology
- Stability of Geodesically Complete Cosmologies
- A covariant Lagrangian for stable nonsingular bounce
- Non-Bunch-Davies Initial State Reconciles Chaotic Models with BICEP and Planck
- Reconciliation of High Energy Scale Models of Inflation with Planck
- Possible Explanation to Low CMB Quadrupole
- Minimum Length Cutoff in Inflation and Uniqueness of the Action
- The Effective Field Theory of nonsingular cosmology: II
- Cosmological bounce and Genesis beyond Horndeski
- Tunneling wave function of the universe
- G-Bounce Inflation: Towards Nonsingular Inflation Cosmology with Galileon Field
- Rescuing Single Field Inflation from the Swampland
- The bounce universe history from unimodular gravity
- Non-Singular Bouncing Cosmology: Consistency of the Effective Description
- A Galileon Design of Slow Expansion
- Can Universe Experience Many Cycles with Different Vacua ?
- Running of the Spectral Index and Violation of the Consistency Relation Between Tensor and Scalar Spectra from trans-Planckian Physics
- Unbraiding the Bounce: Superluminality around the Corner
- The No-Boundary Proposal as a Path Integral with Robin Boundary Conditions
- Galilean Creation of the Inflationary Universe
- Cuscuton Bounce
- Inflation from Minkowski Space
- Bounce beyond Horndeski with GR asymptotics and -crossing
- Cosmological bounces and Lorentzian wormholes in Galileon theories with an extra scalar field
- Extended Effective Field Theory of Inflation
- Bounce Inflation Cosmology with Standard Model Higgs Boson
- Pre-inflationary primordial perturbations
- Loops rescue the no-boundary proposal
- Quantum Incompleteness of Inflation
- Primordial perturbations with pre-inflationary bounce
- Bounce in GR and higher-order derivative operators
- Implication of GW170817 for cosmological bounces
- Pre-inflationary genesis with CMB B-mode polarization
- Bounce and cyclic cosmology in weakly broken galileon theories
- Why should primordial perturbations be in a vacuum state?
- On the initial condition of inflationary fluctuations
- Non-Bunch-Davies Anisotropy
- Probing signatures of bounce inflation with current observations
- Towards the physical vacuum of cosmic inflation
Cited by in corpus (22)
- Entanglement Entropy of Cosmological Perturbations
- Intermittent null energy condition violations during inflation and primordial gravitational waves
- Obviating PBH overproduction for SIGWs generated by Pulsar Timing Arrays in loop corrected EFT of bounce
- Swampland, Trans-Planckian Censorship and Fine-Tuning Problem for Inflation: Tunnelling Wavefunction to the Rescue
- Role of trans-Planckian modes in cosmology
- Perturbative unitarity and NEC violation in genesis cosmology
- Unattainability of the Trans-Planckian regime in Nonlocal Quantum Gravity
- Regularized-Renormalized-Resummed loop corrected power spectrum of non-singular bounce with Primordial Black Hole formation
- Implication of island for inflation and primordial perturbations
- Thermal, Trapped and Chromo-Natural Inflation in light of the Swampland Criteria and the Trans-Planckian Censorship Conjecture
- Unitarity Problems for an Effective Field Theory Description of Early Universe Cosmology
- Parity violation in primordial tensor non-Gaussianities from matter bounce cosmology
- Negative non-Gaussianity as a salvager for PBHs with PTAs in bounce
- Limitations of an Effective Field Theory Treatment of Early Universe Cosmology
- Climbing over the potential barrier during inflation via null energy condition violation
- Parity-violating primordial gravitational waves from null energy condition violation
- Impact of trans-Planckian quantum noise on the Primordial Gravitational Wave spectrum
- Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the string-theoretical Swampland Programme
- The Role of Torsion in Trans-Planckian Physics
- Constraining matter-bounce scenario from scalar-induced vector perturbations
- Cosmological Implications of Thermodynamic Split Conjecture
- RRR fluctuations from non-singular bounce