129 citations · 516 across the 19 of their papers we have counts for
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Scalar-Induced Gravitational Waves from Ghost Inflation and Parity Violation
Sebastian Garcia-Saenz, Yizhou Lu, Zhiming Shuai
We calculate the scalar-induced gravitational wave energy density in the theory of Ghost Inflation, assuming scale invariance and taking into account both the power spectrum- and t…
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…
Gauge transformation of scalar induced tensor perturbation during matter domination
Arshad Ali, Yungui Gong, Yizhou Lu
We study the scalar induced tensor perturbations at second order during matter domination in seven different gauges. Considering the obtained solution from the Newtonian gauge, we…
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…
Constraints on primordial curvature perturbations from primordial black hole dark matter and secondary gravitational waves
Yizhou Lu, Yungui Gong, Zhu Yi +1
Primordial black holes and secondary gravitational waves can be used to probe the small scale physics at very early time. For secondary gravitational waves produced after the horiz…