Abstract
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.
Original language  English 

Article number  135176 
Journal  Physics Letters, Section B: Nuclear, Elementary Particle and HighEnergy Physics 
Volume  801 
DOIs  
Publication status  Published  2020 Feb 10 
ASJC Scopus subject areas
 Nuclear and High Energy Physics
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Data for: Compact Star of Holographic Nuclear Matter and GW170817
Lin, F. (Contributor), Mendeley Data, 2021 Apr 26
DOI: 10.17632/vd65ytkh2n.1, https://data.mendeley.com/datasets/vd65ytkh2n
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