REVIEW 11 cited by
The Cold Dark Matter Density Perturbation
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
Signed reviews
read the original abstract
This is a review of the Cold Dark Matter model of structure formation, and its variants. The approach is largely from first principles, the main aim being to impart a basic understanding of the relevant theory with an eye to the likely intense activity of the next few years, but the current observational status of the model is also critically assessed. The evolution of adiabatic and isocurvature density perturbations is described, and their effect on the large scale cmb anisotropy calculated as well as that of any gravitational waves. The generation of all three types of perturbation during inflation is described, and the normalisation and spectral indices are calculated in terms of the inflationary potential and its first and second derivatives. The comparison of the theory with each type of observation is described, starting with the COBE data and moving down in scale to the non-linear regime. Constraints on the spectrum of the adiabatic density perturbation are exhibited, the spectrum being parametrised by its normalisation and its degree of tilt. Finally extensions of the CDM model are considered, which replace some of the cold dark matter by hot dark matter or a cosmological constant.
Forward citations
Cited by 11 Pith papers
-
Nonlinear Lattice Framework for Inflation: Bridging stochastic inflation and the $\delta{N}$ formalism
A shear-free locally FLRW lattice framework for single-field inflation captures spatially varying expansion, curvature corrections, and nonlinear δN observables at a fraction of the cost of full numerical relativity.
-
Superhorizon curvature perturbations in hybrid inflation revisited
Hybrid inflation's waterfall tachyonic instability grows isocurvature modes that convert to curvature perturbations at the field-space turn, yielding a k^{3}-peaked spectrum with always-positive f_NL that enhances PBH...
-
Imperfect dark matter with higher derivatives
Higher-derivative extension of dark matter yields an imperfect fluid that matches pressureless dust on homogeneous backgrounds but generates acceleration and vorticity to avoid caustic singularities in inhomogeneous c...
-
Impact of memory-burdened black holes on primordial gravitational waves in light of Pulsar Timing Array
Memory-burdened primordial black holes can explain pulsar timing array data as diluted blue-tilted gravitational waves and leave a testable high-frequency signal.
-
Connecting the Higgs Potential and Primordial Black Holes
A percolation calculation connects the Higgs potential parameters to the allowed masses and formation temperatures of primordial black holes, excluding regions where vacuum decay bubbles would have destroyed the universe.
-
Running of the spectral index: Reconciling the CMB with the Lyman-$\alpha$ Forest
Combining Planck, ACT, SPT-3G and eBOSS data, the authors report a ~2σ preference for a nonzero second derivative of the primordial spectral index and show that featureful inflationary potentials fit the data better t...
-
End of the constant-roll inflation, and the reheating temperature
A modified potential can terminate constant-roll inflation and produce an oscillatory reheating phase, yielding a reheating temperature within a few orders of magnitude of the GUT scale.
-
Primordial Gravitational Waves as Complementary Probe of Dark Matter Indirect Detection
The paper forecasts that future gravitational wave observatories could infer dark matter mass and annihilation cross-section from early matter-domination suppressions in the inflationary gravitational wave spectrum, c...
-
Inflationary Gravitational Waves and Laboratory Searches as Complementary Probes of Right-handed Neutrinos
A period of early matter domination by GeV-scale right-handed neutrinos would suppress inflationary gravitational waves, and future detectors could probe this effect in regions also accessible to laboratory searches f...
-
Reconstructing slow-roll Scalar-Tensor Gauss-Bonnet single field inflation from running spectral data
Derives slow-roll observables and consistency relations for scalar-tensor Gauss-Bonnet inflation and fits a specific model to Planck data.
-
Reheating constraints to modulus mass for single field inflationary models
A scale-counting argument linking modulus mass to reheating parameters yields quoted bounds m_chi >~ 10^12 to 10^15 GeV that are not supported by the printed equations.
Discussion (0). Continue with ORCID to comment.