Neutron stars in the Witten-Sakai-Sugimoto model
arXiv:2307.11886 · doi:10.1007/JHEP11(2023)209
Abstract
We utilize the top-down holographic QCD model, the Witten-Sakai-Sugimoto model, in a hybrid setting with the SLy4, soft chiral EFT and stiff chiral EFT equations of state to describe neutron stars with high precision. In particular, we employ a calibration that bootstraps the nuclear matter by fitting the Kaluza-Klein scale and the 't Hooft coupling such that the physical saturation density and physical symmetry energy are achieved. We obtain static stable neutron star mass-radius data via the Tolman-Oppenheimer-Volkov equations that yield sufficiently large maximal masses of neutron stars to be compatible with the recently observed PSR-J0952-0607 data as well as all other known radius and tidal deformation constraints.
arXiv commentLaTeX: 24 pages, 6 figures; V2: two additional chiral EFT EOSs are included at low density, boundary conditions improved and comments added
References in corpus (23)
- Low energy hadron physics in holographic QCD
- A unified equation of state of dense matter and neutron star structure
- A NICER View of the Massive Pulsar PSR J0740+6620 Informed by Radio Timing and XMM-Newton Spectroscopy
- Equation of state and neutron star properties constrained by nuclear physics and observation
- More on a holographic dual of QCD
- Cold Quark Matter
- Baryons from instantons in holographic QCD
- How perturbative QCD constrains the Equation of State at Neutron-Star densities
- Holographic Baryons : Static Properties and Form Factors from Gauge/String Duality
- Cold Nuclear Matter In Holographic QCD
- Holographic quark matter and neutron stars
- From holography towards real-world nuclear matter
- Holographic QCD with Dynamical Flavors
- The Sakai-Sugimoto soliton
- Deconfined, Massive Quark Phase at High Density and Compact Stars: A Holographic Study
- Holographic quarkyonic matter
- Holographic quark matter with colour superconductivity and a stiff equation of state for compact stars
- Isospin asymmetry in holographic baryonic matter
- Phases of kinky holographic nuclear matter
- Compact Star of Holographic Nuclear Matter and GW170817
- Heavy Holographic QCD
- Holographic Nuclear Physics with Massive Quarks
- Exploring the Phase Diagram of V-QCD with Neutron Star Merger Simulations
Cited by in corpus (7)
- Symmetry energy in holographic QCD
- Boundary terms in the Witten-Sakai-Sugimoto model at finite density
- Isospin asymmetry and neutron stars in V-QCD
- A holographic study on QCD phase transition and neutron star properties
- Deriving Neutron Star Equation of State from AdS/QCD
- Holographic QCD Matter: Chiral Soliton Lattices in Strong Magnetic Field
- Finite density nuclear matter and neutron stars in hard-wall AdS/QCD model