53 citations · 624 across the 45 of their papers we have counts for
45 papers
No long hair behaviors of ultra-compact objects
Guohua Liu, Yan Peng
We investigate distributions of matter fields outside spherically symmetric ultra-compact objects in the asymptotically flat background. Based on the dominant energy condition and…
The existence of null circular geodesics outside extremal spherically symmetric asymptotically flat hairy black holes
Yan Peng
The existence of null circular geodesics has been proved in the background of non-extremal spherically symmetric asymptotically flat black holes in previous works. Then it is an in…
Analytical investigations on non-minimally coupled scalar fields outside neutral reflecting shells
Yan Peng
We study the existence of scalar fields outside neutral reflecting shells. We consider static massive scalar fields non-minimally coupled to the Gauss-Bonnet invariant. We analytic…
A no-go theorem for scalar fields with couplings from Ginzburg-Landau models
Guohua Liu, Yan Peng
Recently Hod proved a no-go theorem that static scalar fields cannot form spherically symmetric boson stars in the asymptotically flat background. On the other side, scalar fields…
No scalar condensations outside reflecting stars with coupling terms from Ginzburg-Landau models
Guohua Liu, Yan Peng
We consider static scalar fields coupled to the gradient where the coupling also appears in next-to-leading order Ginzburg-Landau models. We study condensation behaviors of scalar…
Investigations on hoop conjecture for horizonless spherical charged stars
Yan Peng
For horizonless spherical stars with uniform charge density, the hoop conjecture was tested based on the interior solution. In this work, we are interested in more general horizonl…