Speaker
Chong-Bin Chen
(Nanchang University)
Description
A mechanism for generating anisotropic enhancements of the curvature perturbation through a vector field is proposed. This suggests that statistical anisotropy in primordial black hole (PBH) formation and stochastic gravitational-wave backgrounds (SGWB) may be inevitable if inflation undergoes an anisotropic inflationary phase. Our findings offer a novel approach to probe vector hair during inflation and to test the cosmic no-hair conjecture.
| Research Area | Cosmology: very early universe |
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Authors
Chong-Bin Chen
(Nanchang University)
Prof.
Fu-Wen Shu
(Nanchang University)
Ms
Bai-Xin An
(Nanchang University)