摘要
We use a holographic model of quantum chromodynamics to extract the equation of state (EoS) for the cold nuclear matter of moderate baryon density. This model is based on the SakaiSugimoto model in the deconfined Witten's geometry with the additional pointlike D4brane instanton configuration as the holographic baryons. Our EoS takes the following doublypolytropic form: ϵ=2.629A^{−0.192}p^{1.192}+0.131A^{0.544}p^{0.456} with A a tunable parameter of order 10^{−1}, where ϵ and p are the energy density and pressure, respectively. The sound speed satisfies the causality constraint and breaks the sound barrier. We solve the TolmanOppenheimerVolkoff equations for the compact stars and obtain the reasonable compactness for the proper choices of A. Based on these configurations we further calculate the tidal deformability of the single and binary stars. We find our results agree with the inferred values of LIGO/Virgo data analysis for GW170817.
原文  英語 

文章編號  135176 
期刊  Physics Letters, Section B: Nuclear, Elementary Particle and HighEnergy Physics 
卷  801 
DOIs  
出版狀態  已發佈  2020 2月 10 
ASJC Scopus subject areas
 核能與高能物理
指紋
深入研究「Compact star of holographic nuclear matter and GW170817」主題。共同形成了獨特的指紋。資料集

Data for: Compact Star of Holographic Nuclear Matter and GW170817
Lin, F. (Contributor), Mendeley Data, 2021 4月 26
DOI: 10.17632/vd65ytkh2n.1, https://data.mendeley.com/datasets/vd65ytkh2n
資料集: Dataset