11 papers
Neutron Star Observations Challenge a Large Colour-Superconducting Gap in Dense Quark Matter
Shao-Peng Tang, Yong-Jia Huang, Yi-Zhong Fan
At asymptotically high density, quantum chromodynamics (QCD) predicts that quark matter becomes a colour superconductor in the colour-flavour-locked (CFL) phase, yet, away from the…
The maximum mass and rotational kinetic energy of rapidly rotating neutron stars
Shao-Peng Tang, Yong-Jia Huang, Yi-Zhong Fan
Rapid uniformly-rotating neutron stars are expected to be formed for instance in the collapse of some massive stars, the accretion of compact object binaries, and double neutron st…
Verification of the Black Hole Area Law with GW230814
Shao-Peng Tang, Hai-Tian Wang, Yin-Jie Li +1
We present an observational confirmation of Hawking's black-hole area theorem using the newly released gravitational-wave data from the GWTC-4.0. We analyze the high signal-to-nois…
Phase transition and nuclear symmetry energy from neutron star observations: Constraints in light of PSR J0614--3329
Shao-Peng Tang, Yong-Jia Huang, Yi-Zhong Fan
The possible occurrence of a first-order hadron-quark phase transition (FOPT) in neutron-star interiors remains an open question. Whether such a transition can be directly tested w…
Detection of a Higher Harmonic Quasi-normal Mode in the Ringdown Signal of GW231123
Hai-Tian Wang, Shao-Peng Tang, Peng-Cheng Li +1
The ringdown phase of a gravitational wave signal from a binary black hole merger offers a unique laboratory for testing general relativity in the strong-field regime and probing t…
Upper Limit of Sound Speed in Nuclear Matter: A Harmonious Interplay of Transport Calculation and Perturbative Quantum Chromodynamic Constraint
Shao-Peng Tang, Yong-Jia Huang, Ming-Zhe Han +1
Very recently, it has been shown that there is an upper bound on the squared sound speed of nuclear matter from the transport, which reads . In this work, w…