activity
20192026
most citedWhen Primordial Black Holes from Sound Speed Resonance Meet a Stochastic Background of Gravitational Waves

116 citations · 551 across the 20 of their papers we have counts for

collaborators

20 papers

gr-qc2026

The Analytical Solutions of Dyonic Black Holes in Einstein-Euler-Heisenberg Theory

Haoyuan Luo, Nan Cao, Xiao Yan Chew +3

Recently, we constructed analytical purely electric and purely magnetic black-hole solutions in Einstein--Euler--Heisenberg theory, while the corresponding dyonic solutions were ob…

gr-qc2026

Purely Electric, Magnetic, and Dyonic Black Holes in Einstein-Euler-Heisenberg Theory

Haoyuan Luo, Nan Cao, Xiao Yan Chew +3

We investigate static, spherically symmetric charged black holes in Einstein gravity coupled to Euler--Heisenberg (EH) nonlinear electrodynamics, including purely electric, purely…

gr-qc2026

Evolution of Linear Perturbations under Time-Dependent Hubble Friction I: SR-USR-SR Inflation

Wen Li, Chao Chen

The origin of the finite dip in the curvature power spectrum of instantaneous Slow-Roll (SR)-Ulta-Slow-Roll (USR)-SR inflation remains controversial at linear order, and its full s…

gr-qc2025

Oscillations of the black hole photon ring as a probe of ultralight dilaton fields

Chunlong Li, Chao Chen, Xiao Yan Chew

Advancements of very long baseline interferometry (VLBI) have facilitated unprecedented probing of superradiant phenomena in the vicinities of supermassive black holes (SMBHs), est…

gr-qc2024★ 2 cited

Constraining matter-bounce scenario from scalar-induced vector perturbations

Mian Zhu, Chao Chen

Bouncing cosmologies, while offering a compelling alternative to inflationary models, face challenges from the growth of vector perturbations during the contracting phase. While li…

astro-ph.CO2023

The backreaction effect of the sound speed resonance in DBI inflation

Bichu Li, Chao Chen, Bo Wang

We examine the backreaction effect of the enhanced small-scale scalar perturbations from the sound speed resonance (SSR) mechanism for primordial black hole formation in Dirac-Born…