Compact Star of Holographic Nuclear Matter and GW170817

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 Sakai-Sugimoto model in the deconfined Witten's geometry with the additional point-like D4-brane instanton configuration as the holographic baryons. Our EoS takes the following doubly-polytropic form: $\epsilon =2.629{\mathcal{A}}^{-0.192}{p}^{1.192}+0.131{\mathcal{A}}^{0.544}{p}^{0.456}$ with $\mathcal{A}$ a tunable parameter of order $10^{-1}$, where $\epsilon$ and $p$ are the energy density and pressure, respectively. The sound speed satisfies the causality constraint and breaks the sound barrier. We solve the Tolman-Oppenheimer-Volkoff equations for the compact stars and obtain the reasonable compactness for the proper choices of $\mathcal{A}$. 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.

arXiv comment7 pages, 5 figures; v2: published version

References in corpus (35)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• The Large N Limit of Superconformal Field Theories and Supergravity
• Viscosity in Strongly Interacting Quantum Field Theories from Black Hole Physics
• GW170817: Measurements of Neutron Star Radii and Equation of State
• Low energy hadron physics in holographic QCD
• Tidal Love numbers of neutron stars
• Properties of the binary neutron star merger GW170817
• The Nuclear Equation of State and Neutron Star Masses
• More on a holographic dual of QCD
• New constraints on radii and tidal deformabilities of neutron stars from GW170817
• The NANOGrav Nine-year Data Set: Mass and Geometric Measurements of Binary Millisecond Pulsars
• Tidal Deformabilities and Radii of Neutron Stars from the Observation of GW170817
• Drag force in AdS/CFT
• Baryons And Branes In Anti de Sitter Space
• Calculating the Jet Quenching Parameter from AdS/CFT
• High density QCD on a Lefschetz thimble?
• A critical examination of constraints on the equation of state of dense matter obtained from GW170817
• Pulsar J0453+1559: A Double Neutron Star System with a Large Mass Asymmetry
• Baryons from instantons in holographic QCD
• Gravitational-wave signal from binary neutron stars: a systematic analysis of the spectral properties
• The ephemeris, orbital decay, and masses of 10 eclipsing HMXBs
• Advances in perturbative thermal field theory
• Holographic Nuclear Physics
• Tidal deformability with sharp phase transitions in (binary) neutron stars
• Cool quark matter
• Tidal Deformabilities and Neutron Star Mergers
• NJL and QCD from String Theory
• Holographic quark matter and neutron stars
• Constraining nuclear matter parameters with GW170817
• From holography towards real-world nuclear matter
• Breaking the sound barrier in AdS/CFT
• Holographic compact stars meet gravitational wave constraints
• Stringy NJL and Gross-Neveu models at finite density and temperature
• Neutron stars and stellar mergers as a laboratory for dense QCD matter
• Towards a holographic quark-hadron continuity

Cited by in corpus (14)

• Interpreting Binary Neutron Star Mergers: Describing the Binary Neutron Star Dynamics, Modelling Gravitational Waveforms, and Analyzing Detections
• Holographic modeling of nuclear matter and neutron stars
• Building a realistic neutron star from holography
• Holographic quarkyonic matter
• Phase diagram and compact stars in a holographic QCD model
• Dark matter effects on the properties of neutron stars: compactness and tidal deformability
• Holographic spontaneous anisotropy
• GW170817 and GW190425 as Hybrid Stars of Dark and Nuclear Matters
• Neutron stars in the Witten-Sakai-Sugimoto model
• Quantum information probes of charge fractionalization in large-$N$ gauge theories
• Tidal Deformation and Radial Pulsations of Neutron Star with Holographic Multiquark Core
• Dark I-Love-Q
• Deriving Neutron Star Equation of State from AdS/QCD
• Predictions on observing hot holographic quark star with gravitational waves