5 papers
Scalar-induced gravitational waves from inflation with symmetry breaking
Chong-Bin Chen, Jia-Xi Feng, Fu-Wen Shu +1
We investigate scalar-induced gravitational waves (SIGWs) in an inflationary model with symmetry breaking, in which charged scalar fields are coupled to an isotropic triplet of Abe…
Misalignment production of isotropized vector dark matter?
Chong-Bin Chen
The paper studies how a multi‑vector dark matter condensate can be produced via the misalignment mechanism during inflation, using isotropized background fields to avoid anisotropy…
Inflation with vector fields revisited: non-Gaussianities
Chong-Bin Chen
We revisit the resulting bispectrum of inflation with kinetic-coupled vector fields by organizing the dynamics in terms of , which measures the vector kinetic contribution relat…
Bound-State Resonances of Schwarzschild-de Sitter Black Holes: Analytic Treatment
Qi-Dong Chen, Chong-Bin Chen, Guo-Qing Huang +2
Inspired by Mashhoon's framework connecting black hole quasi-normal modes (QNMs) to bound-state resonances in inverted potentials, Vlkel's recent numerical analysi…
Primordial black holes with anisotropic hair
Chong-Bin Chen, Bai-Xin An, Fu-Wen Shu
A mechanism for generating anisotropic enhancements of the curvature perturbation through a vector field is proposed. We find that when the mixing between the inflaton perturbation…