Measuring the tilt of primordial gravitational-wave power spectrum from observations

Abstract

Primordial gravitational waves generated during inflation lead to the B-mode polarization in the cosmic microwave background and a stochastic gravitational wave background in the Universe. We will explore the current constraint on the tilt of primordial gravitational-wave spectrum, and forecast how the future observations can improve the current constraint.

3 pages, 2 figures

References in corpus (3)

• The Five-Hundred-Meter Aperture Spherical Radio Telescope (FAST) Project
• Observational Constraints on Theories with a Blue Spectrum of Tensor Modes
• No evidence for the blue-tilted power spectrum of relic gravitational waves

Cited by in corpus (7)

• Primordial gravitational waves from NANOGrav: a broken power-law approach
• Log-dependent slope of scalar induced gravitational waves in the infrared regions
• Overcharging a Reissner-Nordström Taub-NUT regular black hole
• Implications for cosmology from Ground-based Cosmic Microwave Background observations
• Measuring the scalar induced gravitational waves from observations
• Measuring the primordial gravitational waves from cosmic microwave background and stochastic gravitational wave background observations
• Measuring the primordial curvature perturbations from the scalar induced gravitational waves