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Low-frequency Gravitational Waves from Double-inflection-point Inflation (1907.05213v1)
Published 11 Jul 2019 in astro-ph.CO, gr-qc, and hep-ph
Abstract: We study the production of gravitational waves from primordial scalar perturbations in double-inflection-point inflation, in which one of the inflection points predicts the power spectra consistent with CMB observations at large scales and the other generates a large peak in the power spectrum of scalar perturbations at small scales. We find that the reduced gravitational waves at low frequencies can be detected by future space-based laser interferometers.