Effects of Poisson Isocurvature Perturbations on Induced Gravitational Waves

arXiv:2610.00989 · astro-ph.CO, gr-qc · Submitted 2026-10-01 · Read on arXiv

astro-ph.CO, gr-qc

Submitted: 2026-10-01

Updated: 2026-10-01

Comments: 13 pages, 3 figures

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Bispectrum — 44× in this paper · explained in 3 episodes
• Non-Gaussianity — 6× in this paper · explained in 2 episodes
• Benchmark — 5× in this paper · explained in 2 episodes
• Chinese Academy of Sciences — 3× in this paper
• Clustering — 3× in this paper · explained in 2 episodes
• Abundance — 2× in this paper · explained in 1 episode
• Degeneracy — 2× in this paper · explained in 3 episodes
• Higher-order statistics — 1× in this paper · explained in 2 episodes
• Momentum transfer — 1× in this paper · explained in 2 episodes
• Reheating — 1× in this paper · explained in 2 episodes

Sources

• The cosmological gravitational wave background from primordial density perturbations
• Gravitational Wave Spectrum Induced by Primordial Scalar Perturbations
• The Maximal Amount of Gravitational Waves in the Curvaton Scenario
• Semianalytic Calculation of Gravitational Wave Spectrum Nonlinearly Induced from Primordial Curvature Perturbations
• Scalar induced gravitational waves review
• Primordial Black Holes - Perspectives in Gravitational Wave Astronomy -
• Gravitational Waves Induced by non-Gaussian Scalar Perturbations
• Gravitational waves from an early matter era
• Enhancement of Gravitational Waves Induced by Scalar Perturbations due to a Sudden Transition from an Early Matter Era to the Radiation Era
• Gravitational Waves Induced by Scalar Perturbations during a Gradual Transition from an Early Matter Era to the Radiation Era
• Gravitational Wave Signals From Early Matter Domination: Interpolating Between Fast and Slow Transitions
• Critical behavior and ultraviolet scaling of induced gravitational waves from an early matter-dominated era
• The poltergeist mechanism - Enhancement of scalar-induced gravitational waves with early matter-dominated era -
• Gravitational Wave Production right after a Primordial Black Hole Evaporation
• Gravitational waves from a universe filled with primordial black holes
• Gravitational wave constraints on the primordial black hole dominated early universe
• From formation to evaporation: Induced gravitational wave probes of the primordial black hole reheating scenario
• Causal gravitational waves as a probe of free streaming particles and the expansion of the Universe
• Quasi-Single Field Inflation and Non-Gaussianities
• Cosmological Collider Physics

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