30 citations · 117 across the 13 of their papers we have counts for
13 papers
Holographic Soliton Crystals for Dense Nuclear Matter and Neutron Stars
Lorenzo Bartolini, Sven Bjarke Gudnason, Jonas Mager +1
We construct a nuclear-matter equation of state (EOS) from holographic QCD in the Witten-Sakai-Sugimoto (WSS) model, going beyond the homogeneous ansatz by building dense baryonic…
Isospin asymmetry and neutron stars in V-QCD
Lorenzo Bartolini, Sven Bjarke Gudnason, Matti Järvinen
Isospin asymmetric nuclear matter is introduced to V-QCD, a bottom-up holographic Quantum Chromodynamics (QCD) model. Using a small isospin chemical potential we extract the symmet…
Mass and Isospin Breaking Effects in the Skyrme Model and in Holographic QCD
Lorenzo Bartolini, Stefano Bolognesi, Sven Bjarke Gudnason +1
We discuss how the quark masses and their mass splitting affect the baryons in the Skyrme model as well as the Witten-Sakai-Sugimoto (WSS) model. In both cases baryons are describe…
Boundary terms in the Witten-Sakai-Sugimoto model at finite density
Lorenzo Bartolini, Sven Bjarke Gudnason
We consider the Witten-Sakai-Sugimoto model in the approximation of smeared instantons at finite density via a homogeneous Ansatz, which is known to be discontinuous in order to be…
Neutron stars in the Witten-Sakai-Sugimoto model
Lorenzo Bartolini, Sven Bjarke Gudnason
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 descri…
Neutron stars and phase diagram from a double hard-wall
Lorenzo Bartolini, Sven Bjarke Gudnason, Josef Leutgeb +1
Description of nuclear matter in the core of neutron stars eludes the main tools of investigation of QCD, such as perturbation theory and the lattice formulation of the theory. Rec…
Symmetry energy in holographic QCD
Lorenzo Bartolini, Sven Bjarke Gudnason
We study the symmetry energy (SE), an important quantity in nuclear physics, in the Witten-Sakai-Sugimoto model and in a much simpler hard-wall model of holographic QCD. The SE is…
Neutron stars and phase diagram in a hard-wall AdS/QCD model
Lorenzo Bartolini, Sven Bjarke Gudnason, Josef Leutgeb +1
We study the phase diagram of (large-) QCD using a simplistic holographic hard-wall model with a dynamical scalar field and a homogeneous Ansatz representing a smeared instant…
Holographic Nuclear Physics with Massive Quarks
Salvatore Baldino, Lorenzo Bartolini, Stefano Bolognesi +1
We discuss nuclear physics in the Witten-Sakai-Sugimoto model, in the limit of large number of colors and large 't Hooft coupling, with the addition of a finite mass for the…
Deuteron electric dipole moment from holographic QCD
Lorenzo Bartolini, Stefano Bolognesi, Sven Bjarke Gudnason
We compute the electric dipole moment (EDM) of the deuteron in the holographic QCD model of Witten-Sakai-Sugimoto. Previously, the leading contribution to the EDM of nucleons was c…
From the Sakai-Sugimoto Model to the Generalized Skyrme Model
Lorenzo Bartolini, Stefano Bolognesi, Andrea Proto
We derive the generalized Skyrme model as a low-energy effective model of the Sakai-Sugimoto model. The novelty with the past is the presence of the sextic term equal to the topolo…
Theta dependence in Holographic QCD
Lorenzo Bartolini, Francesco Bigazzi, Stefano Bolognesi +2
We study the effects of the CP-breaking topological -term in the large QCD model by Witten, Sakai and Sugimoto with degenerate light flavors. We first compute the gr…
Neutron electric dipole moment from gauge/string duality
Lorenzo Bartolini, Francesco Bigazzi, Stefano Bolognesi +2
We compute the electric dipole moment of nucleons in the large QCD model by Witten, Sakai and Sugimoto with degenerate massive flavors. Baryons in the model are insta…