Perturbative inflaton decay emits an irreducible stochastic GW background with Ω_GW ∝ f spectrum whose amplitude is set by the hard decay rate and reaches O(10^{-17}) at GHz scales.
Tokareva, Phys
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Bose enhancement from a transient condensate of inflaton decay products dramatically increases decay efficiency and amplifies stochastic gravitational wave production to potentially observable levels.
High-frequency primordial gravitational waves extend to higher frequencies due to post-inflation inflaton dynamics, and their detailed spectrum shape can distinguish inflation models.
Scalar leptoquarks in SU(5) GUT produce a stochastic gravitational wave background via graviton bremsstrahlung whose spectrum may be accessible to resonant-cavity detectors.
citing papers explorer
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Irreducible Graviton Floor from Reheating
Perturbative inflaton decay emits an irreducible stochastic GW background with Ω_GW ∝ f spectrum whose amplitude is set by the hard decay rate and reaches O(10^{-17}) at GHz scales.
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Probing Bose-enhanced Inflaton Decay with Gravitational Waves
Bose enhancement from a transient condensate of inflaton decay products dramatically increases decay efficiency and amplifies stochastic gravitational wave production to potentially observable levels.
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High Frequency Spectrum of Primordial Gravitational Waves
High-frequency primordial gravitational waves extend to higher frequencies due to post-inflation inflaton dynamics, and their detailed spectrum shape can distinguish inflation models.
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Gravitational waves from graviton bremsstrahlung in scalar leptoquark decays
Scalar leptoquarks in SU(5) GUT produce a stochastic gravitational wave background via graviton bremsstrahlung whose spectrum may be accessible to resonant-cavity detectors.
- A Unified Bogoliubov Approach to Primordial Gravitational Waves: From Inflation to Reheating