129 citations · 421 across the 16 of their papers we have counts for
7 papers · 1 filter
Primordial black holes and scalar induced gravitational waves from Higgs inflation with non-canonical kinetic term
Jiong Lin, Shengqing Gao, Yungui Gong +3
We resolve the potential-restriction problem in K/G inflation by introducing nonminimal coupling. In this context, Higgs field successfully drives inflation satisfying CMB observat…
Double-peaked inflation model: Scalar induced gravitational waves and primordial-black-hole suppression from primordial non-Gaussianity
Fengge Zhang, Jiong Lin, Yizhou Lu
A significant abundance of primordial black hole (PBH) dark matter can be produced by curvature perturbations with power spectrum $Δ_ζ^2(k_{\mathrm{peak}})\sim \mathcal{O}(10^{-2})…
Spatially covariant gravity with a dynamic lapse function
Jiong Lin, Yungui Gong, Yizhou Lu +1
In the framework of spatially covariant gravity, it is natural to extend a gravitational theory by putting the lapse function and the spatial metric on an equal footin…
On the waveform of the scalar induced gravitational waves
Fengge Zhang, Arshad Ali, Yungui Gong +2
The scalar induced gravitational waves (SIGWs) is a useful tool to probe the physics in the early universe. To study inflationary models with this tool, we need to know how the wav…
Gauge transformation of scalar induced gravitational waves
Yizhou Lu, Arshad Ali, Yungui Gong +2
The gauge dependence of the scalar induced gravitational waves (SIGWs) generated at the second order imposes a challenge to the discussion of the secondary gravitational waves gene…
Primordial black holes and secondary gravitational waves from k/G inflation
Jiong Lin, Qing Gao, Yungui Gong +3
The possibility that in the mass range around most of dark matter constitutes of primordial black holes (PBHs) is a very interesting topic. To produce PBHs with…
The reconstruction of tachyon inflationary potentials
Qin Fei, Yungui Gong, Jiong Lin +1
We derive a lower bound on the field excursion for the tachyon inflation, which is determined by the amplitude of the scalar perturbation and the number of -folds before the end…