7 papers
Nonstrange and strange quark matter at finite temperature within modified NJL model and protoquark stars
Wen-Li Yuan, Nobutoshi Yasutake, Renxin Xu
We extend the modified Nambu-Jona-Lasinio (NJL) model -- incorporating exchange interactions via the Fierz transformation -- to finite temperatures in both two- and three-flavor sc…
Self-bound hybrid stars with strong phase transitions can relieve major compact star observation tensions
Chen Zhang, Juan M. Z. Pretel, Renxin Xu
Some recent pulsar observations cannot naturally fit into the conventional picture of neutron stars: the compact objects associated with HESS J1731-347 and XTE J1814-338 have too s…
Bayesian constraints on quark stars from multi-messenger observations
Wen-Jie Xie, Cheng-Jun Xia, Chen Zhang +1
We perform a systematic Bayesian analysis of quark star equations of state under current multimessenger constraints, investigating the impact of prior assumptions and extreme-mass…
Constraining the competition between the deconfinement and chiral phase transitions in light of the multimessenger era
Wen-Li Yuan, Bikai Gao, Yan Yan +2
We extend the parity doublet model for hadronic matter and study the possible presence of quark matter inside the cores of neutron stars with the Nambu-Jona-Lasinio (NJL) model. Co…
Hybrid stars with large quark cores within the parity doublet model and modified NJL model
Wen-Li Yuan, Bikai Gao, Yan Yan +1
Using the parity doublet model (PDM) for hadronic matter and a modified Nambu-Jona-Lasinio (NJL) model for quark matter, we investigate the potential existence of two- and three-fl…
Rotational Properties of Inverted Hybrid Stars
Rodrigo Negreiros, Chen Zhang, Renxin Xu
We study the rotational properties of inverted hybrid stars (also termed cross stars), which have been recently proposed as a possible new class of compact stars characterized by a…