Showing 2016 · gr-qcShow all

12 papers · 2 filters

gr-qc2016★ 136 cited

Speed of Gravitational Waves from Strongly Lensed Gravitational Waves and Electromagnetic Signals

Xi-Long Fan, Kai Liao, Marek Biesiada +2

We propose a new model-independent measurement strategy for the propagation speed of gravitational waves (GWs) based on strongly lensed GWs and their electromagnetic (EM) counterpa…

gr-qc2016★ 21 cited

Consistency of warm k-inflation

Zhi-Peng Peng, Jia-Ning Yu, Xiao-Min Zhang +1

We extend the k-inflation which is a type of kinetically driven inflationary model under the standard inflationary scenario to a possible warm inflationary scenario. The dynamical…

gr-qc2016★ 436 cited

Construction of Regular Black Holes in General Relativity

Zhong-Ying Fan, Xiaobao Wang

We present a general procedure for constructing exact black hole solutions with electric or magnetic charges in General Relativity coupled to a nonlinear electrodynamics. We obtain…

gr-qc2016★ 48 cited

First law and Smarr formula of black hole mechanics in nonlinear gauge theories

Yuan Zhang, Sijie Gao

Motivated by the fact that Bardeen black holes do not satisfy the usual first law and Smarr formula, we derive a generalized first law from the Lagrangian of nonlinear gauge field…

gr-qc2016★ 112 cited

Photon Spheres and Sonic Horizons in Black Holes from Supergravity and Other Theories

M. Cvetic, G. W. Gibbons, C. N. Pope

We study closed photon orbits in spherically-symmetric static solutions of supergravity theories, a Horndeski theory, and a theory of quintessence. These orbits lie in what we shal…

gr-qc2016★ 2 cited

Accumulative coupling between magnetized tenuous plasma and gravitational waves

Fan Zhang

We explicitly compute the plasma wave (PW) induced by a plane gravitational wave (GW) travelling through a region of strongly magnetized plasma, governed by force-free electrodynam…

gr-qc2016★ 10 cited

Testing dark energy models with data

Jing-Zhao Qi, Ming-Jian Zhang, Wen-Biao Liu

is a diagnostic approach to distinguish dark energy models. However, there are few articles to discuss what is the distinguishing criterion. In this paper, firstly we smoot…

gr-qc2016★ 1 cited

Inflationary spectra from a near -deformed space-time transition point in Loop Quantum Cosmology

Long Chen, Jian-Yang Zhu

Anomaly-free perturbations of loop quantum cosmology with holonomy corrections reveal an -deformed spacetime structure, , where indicates a Euclidean-like sp…

gr-qc2016★ 16 cited

Time evolutions of scalar field perturbations in -dimensional Reissner-Nordström Anti-de Sitter black holes

Ran Li, Hongbao Zhang, Junkun Zhao

Reissner-Nordström Anti-de Sitter (RNAdS) black holes are unstable against the charged scalar field perturbations due to the well-known superradiance phenomenon. We present the tim…

gr-qc2016★ 8 cited

Thermodynamics of general scalar-tensor theory with non-minimally derivative coupling

Yumei Huang, Yungui Gong

With the usual definitions for the entropy and the temperature associated with the apparent horizon, we discuss the first law of the thermodynamics on the apparent in the general s…

gr-qc2016★ 24 cited

New volume and inverse volume operators for loop quantum gravity

Jinsong Yang, Yongge Ma

A new alternative volume operator is constructed for loop quantum gravity by using the so-called cotriad operators as building blocks. It is shown that the new volume operator shar…

gr-qc2016★ 44 cited

Kerr black holes as accelerators of spinning test particles

Minyong Guo, Sijie Gao

It has been shown that ultraenergetic collisions can occur near the horizon of an extremal Kerr black hole. Previous studies mainly focused on geodesic motions of particles. In thi…