89 citations · 400 across the 14 of their papers we have counts for
14 papers
Neutron Star vs Quark Star in the Multimessenger Era
Zheng Cao, Lie-Wen Chen
Neutron stars (NSs) and self-bound quark stars (QSs) remain the two primary candidates for the compact objects observed as pulsars and in gravitational-wave (GW) events from binary…
Gyrohydrodynamics: Relativistic spinful fluid with strong vorticity
Zheng Cao, Koichi Hattori, Masaru Hongo +2
We develop a relativistic (quasi-)hydrodynamic framework, dubbed the gyrohydrodynamics, to describe fluid dynamics of many-body systems with spin under strong vorticity based on en…
GW190814: Circumstantial Evidence for Up-Down Quark Star
Zheng Cao, Lie-Wen Chen, Peng-Cheng Chu +1
Within a confining quark matter model which considers phenomenologically the quark confinement and asymptotic freedom as well as the chiral symmetry restoration and quark deconfine…
Testing conformal gravity with the supermassive black hole in 1H0707-495
Menglei Zhou, Zheng Cao, Askar Abdikamalov +4
Recently, two of us have found a family of singularity-free rotating black hole solutions in Einstein's conformal gravity. These spacetimes are characterized by three parameters: t…
Testing general relativity with the reflection spectrum of the supermassive black hole in 1H0707495
Zheng Cao, Sourabh Nampalliwar, Cosimo Bambi +2
Recently, we have extended the X-ray reflection model relxill to test the spacetime metric in the strong gravitational field of astrophysical black holes. In the present Letter, we…
Testing conformal gravity with astrophysical black holes
Cosimo Bambi, Zheng Cao, Leonardo Modesto
Weyl conformal symmetry can solve the problem the spacetime singularities present in Einstein's gravity. In a recent paper, two of us have found a singularity-free rotating black h…
Iron K line of boson stars
Zheng Cao, Alejandro Cardenas-Avendano, Menglei Zhou +3
The present paper is a sequel to our previous work [Y. Ni et al., JCAP 1607, 049 (2016)] in which we studied the iron K line expected in the reflection spectrum of Kerr black ho…
Erraticity Analysis of Soft Production by ECOMB
Z. Cao, R. C. Hwa
Event-to-event fluctuations of the spatial patterns of the final states of high-enery collisions, referred to as erraticity, are studied for the data generated by a soft-interactio…
A Color Mutation Model of Soft Interaction in High Energy Hadronic Collisions
Zhen Cao, Rudolph C. Hwa
A comprehensive model, called ECOMB, is proposed to describe multiparticle production by soft interaction. It incorporates the eikonal formalism, parton model, color mutation, bran…
A New Method Of Distinguishing Models For The High- Events At HERA
Zhen Cao, Xiao-Gang He, Bruce McKellar
Many explanations for the excess high-Q^2 events from H1 and ZEUS at HERA have been proposed each with criticisms. We propose a new method to distinguish different…
Fluctuations of Spatial Patterns as a Measure of Classical Chaos
Zhen Cao, Rudolph C. Hwa
In problems where the temporal evolution of a nonlinear system cannot be followed, a method for studying the fluctuations of spatial patterns has been developed. That method is app…
Quark-hadron phase transition with surface fluctuation
Zhen Cao, Rudolph C. Hwa
The effect of surface fluctuation on the observables of quark-hadron phase transition is studied. The Ginzburg-Landau formalism is extended by the inclusion of an extra term in the…
Scaling Properties of Hadron Production in the Ising Model for Quark-Hadron Phase Transition
Zhen Cao, Yi Gao, Rudolph C. Hwa
Earlier study of quark-hadron phase transition in the Ginzberg-Landau theory is reexamined in the Ising model, so that spatial fluctuations during the transition can be taken into…
Phase Transition in Evolutionary Games
Zhen Cao, Rudolph C. Hwa
The evolution of cooperative behaviour is studied in the deterministic version of the Prisoners' Dilemma on a two-dimensional lattice. The payoff parameter is set at the critical r…