An improved Bogoliubov numerical method computes the full primordial GW spectrum from inflation to reheating and shows that inflaton anharmonicity imprints distinctive features at high frequencies.
Gravitational waves from graviton Bremsstrahlung with kination phase
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Torsion-induced one-loop corrections can suppress the stochastic gravitational wave signal from inflaton decay by up to two orders of magnitude relative to tree-level predictions.
Bose enhancement from a transient condensate of inflaton decay products dramatically increases decay efficiency and amplifies stochastic gravitational wave production to potentially observable levels.
citing papers explorer
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A Unified Bogoliubov Approach to Primordial Gravitational Waves: From Inflation to Reheating
An improved Bogoliubov numerical method computes the full primordial GW spectrum from inflation to reheating and shows that inflaton anharmonicity imprints distinctive features at high frequencies.
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Torsion induced one-loop corrections to inflaton decay and the Stochastic gravitational waves
Torsion-induced one-loop corrections can suppress the stochastic gravitational wave signal from inflaton decay by up to two orders of magnitude relative to tree-level predictions.
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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.