activity
19972026
most citedTransition of the dark energy equation of state in an interacting holographic dark energy model

635 citations · 12.7k across the 245 of their papers we have counts for

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Showing 2021 · gr-qcShow all

11 papers · 2 filters

gr-qc2021★ 46 cited

Critical phenomena in dynamical scalarization of charged black hole

Cheng-Yong Zhang, Qian Chen, Yunqi Liu +3

We report a new black hole scalarization mechanism and disclose novel dynamical critical phenomena in the process of the nonlinear accretion of the scalar field into black holes. T…

gr-qc2021★ 19 cited

Dynamical scalarization in Einstein-Maxwell-dilaton theory

Cheng-Yong Zhang, Peng Liu, Yunqi Liu +2

We study the process of fully nonlinear dynamical scalarization starting from a charged black hole or a naked singularity in asymptotically flat spacetime in the Einstein-Maxwell-d…

gr-qc2021★ 20 cited

Quasinormal modes in two-photon autocorrelation and the geometric-optics approximation

Wei-Liang Qian, Kai Lin, Xiao-Mei Kuang +2

In this work, we study the black hole light echoes in terms of the two-photon autocorrelation and explore their connection with the quasinormal modes. It is shown that the above ti…

gr-qc2021★ 2 cited

Shadow and near-horizon characteristics of the acoustic charged black hole in curved spacetime

Ru Ling, Hong Guo, Hang Liu +2

In this paper, we first analyze the horizon structure of the acoustic charged black hole in curved spacetime, and then study its acoustic shadow as well as the near-horizon charact…

gr-qc2021★ 11 cited

A Critical Assessment of Black Hole Solutions With a Linear Term in Their Redshift Function

Daniele Gregoris, Yen Chin Ong, Bin Wang

Different theories of gravity can admit the same black hole solution, but the parameters usually have different physical interpretations. In this work we study in depth the linear…

gr-qc2021★ 16 cited

Evolution of Anti-de Sitter black holes in Einstein-Maxwell-dilaton theory

Cheng-Yong Zhang, Peng Liu, Yunqi Liu +2

We study the nonlinear evolution of the spherical symmetric black holes under a small neutral scalar field perturbation in Einstein-Maxwell-dilaton theory with coupling function $f…

gr-qc2021★ 38 cited

On an alternative mechanism for the black hole echoes

Hang Liu, Wei-Liang Qian, Yunqi Liu +3

Gravitational wave echoes from the black holes have been suggested as a crucial observable to probe the spacetime in the vicinity of the horizon. In particular, it was speculated t…

gr-qc2021★ 5 cited

Dynamical charged black hole spontaneous scalarization in Anti-de Sitter spacetimes

Cheng-Yong Zhang, Peng Liu, Yunqi Liu +2

We study the fully nonlinear dynamics of black hole spontaneous scalarizations in Einstein-Maxwell scalar theory with coupling function , which can transform usua…

gr-qc2021★ 2 cited

Exact Black Hole Solutions with a Conformally Coupled Scalar Field and Dynamic Ricci Curvature in Gravity Theories

Thanasis Karakasis, Eleftherios Papantonopoulos, Zi-Yu Tang +1

We report exact black hole solutions in asymptotically flat or (A)dS four-dimensional spacetime with a conformally coupled self-interacting scalar field in gravity. We first…

gr-qc2021★ 19 cited

Cuspy and fractured black hole shadows in a toy model with axisymmetry

Wei-Liang Qian, Songbai Chen, Cheng-Gang Shao +2

Cuspy shadow was first reported for hairy rotating black holes, whose metrics deviate significantly from the Kerr one. The non-smooth edge of the shadow is attributed to a transiti…

gr-qc2021★ 34 cited

Black holes of -dimensional gravity coupled to a scalar field

Thanasis Karakasis, Eleftherios Papantonopoulos, Zi-Yu Tang +1

We consider gravity theories in the presence of a scalar field minimally coupled to gravity with a self-interacting potential in -dimensions. Without specifying the f…