2 papers
astro-ph.CO2026
Universality of Primordial Anisotropies in Gravitational Wave Background
Boyuan Jiang, Ryo Saito, Ying-li Zhang
We propose a model-independent formalism for describing anisotropies in the stochastic gravitational wave background (SGWB) originating from primordial perturbations. Despite their…
astro-ph.CO2025
Nearly Monochromatic Primordial Black Holes as total Dark Matter from Bubble Collapse
Haonan Wang, Ying-li Zhang, Teruaki Suyama
We propose a two-field model where the inflaton is non-minimally coupled to the instanton . By choosing an appropriate coupling function, we realize the scenario where the…