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We extend the holographic V-QCD model by introducing a charged scalar field sector to represent the condensation of paired quark matter in the deconfined phase. By incorporating this new sector into the previously established framework for…

High Energy Physics - Theory · Physics 2025-05-13 Jesús Cruz Rojas , Tuna Demircik , Christian Ecker , Matti Järvinen

The quantum chromodynamics (QCD) phase diagram, which reveals the state of strongly interacting matter at different temperatures and densities, is key to answering open questions in physics, ranging from the behavior of particles in neutron…

Thermodynamics of strongly interacting matter near critical end point are investigated in a holographic QCD model, which could describe the QCD phase diagram in $T-\mu$ plane qualitatively. Critical exponents along different axis…

High Energy Physics - Phenomenology · Physics 2019-03-27 Xun Chen , Danning Li , Mei Huang

In Hoyos et al. (arXiv:1603.02943) a holographic D3/D7 system was used to describe a deconfined yet massive quark phase of QCD at finite density, concluding that the equation of state of such a phase was not stiff enough to support exotic…

High Energy Physics - Phenomenology · Physics 2020-07-01 Kazem Bitaghsir Fadafan , Jesus Cruz Rojas , Nick Evans

We present a self-consistent dynamical holographic QCD model to investigate the mass spectra and melting behavior of heavy and exotic mesons at finite temperature and finite density. Our approach is based on the Einstein-Maxwell-Dilaton…

High Energy Physics - Theory · Physics 2025-03-21 Bruno Toniato , David Dudal , Subhash Mahapatra , Roldao da Rocha , Siddhi Swarupa Jena

Lattice QCD studies of the thermodynamics of the hot quark-gluon plasma (QGP) demonstrate the importance of accounting for the interactions of quarks and gluons, if one wants to investigate the phase structure of strongly interacting…

Nuclear Theory · Physics 2014-02-27 Eduardo S. Fraga , Aleksi Kurkela , Aleksi Vuorinen

A unified chiral mean field approach is presented for QCD thermodynamics in a wide range of temperatures and densities. The model simultaneously gives a satisfactory description of lattice QCD thermodynamics and fulfills nuclear matter and…

High Energy Physics - Phenomenology · Physics 2019-02-20 Anton Motornenko , Volodymyr Vovchenko , Jan Steinheimer , Stefan Schramm , Horst Stoecker

We present a novel framework for the equation of state of dense and hot Quantum Chromodynamics (QCD), which focuses on the region of the phase diagram relevant for neutron star mergers and core-collapse supernovae. The model combines…

High Energy Physics - Phenomenology · Physics 2023-11-09 Tuna Demircik , Christian Ecker , Matti Järvinen

In this study, we investigate the behavior of entanglement properties in the QCD phase diagram using holographic Einstein-Maxwell-Dilaton (EMD) models. We consider two representative holographic QCD models and examine various entanglement…

High Energy Physics - Theory · Physics 2024-08-12 Zhibin Li

We perform a Bayesian analysis of probability measures for compact star equations of state using new, disjunct constraints for mass and radius. The analysis uses a simple parametrization for hybrid equations of state to investigate the…

High Energy Astrophysical Phenomena · Physics 2014-08-29 David Alvarez-Castillo , Alexander Ayriyan , David Blaschke , Hovik Grigorian

We explore the phase structure of Quantum Chromodynamics (QCD) with two dynamical quark flavors at finite temperature and baryon chemical potential, employing the non-perturbative gauge/gravity duality approach. Our gravitational model is…

High Energy Physics - Phenomenology · Physics 2024-04-17 Yan-Qing Zhao , Song He , Defu Hou , Li Li , Zhibin Li

The Quark-Hadron Chiral Parity-Doublet model (Q$\chi$P) is applied to calculate compact star properties in the presence of a deconfinement phase transition. Within this model, a consistent description of nuclear matter properties, chiral…

Nuclear Theory · Physics 2017-12-20 A. Mukherjee , S. Schramm , J. Steinheimer , V. Dexheimer

We map the mean-field Ising model equation of state onto the QCD phase diagram, and reconstruct the full coexistence region in the case of a first order phase transition. Beyond the coexistence line, we maintain access to the spinodal…

Nuclear Theory · Physics 2024-09-24 Jamie M. Karthein , Volker Koch , Claudia Ratti

We investigate the equation of state(EoS) and the effect of the hadron-quark phase transition of strong interaction matter in compact stars. The hadron matter is described with the relativistic mean field theory,and the quark matter is…

High Energy Physics - Phenomenology · Physics 2018-01-31 Zhan Bai , Huan Chen , Yu-xin Liu

For decades now, low-energy models of QCD have shown indications that a crystalline quark phase could be stable at high chemical potentials. Beyond models, however, there are numerous difficulties in investigating such a hypothesis in full…

High Energy Physics - Phenomenology · Physics 2025-03-31 Theo F. Motta

In this article, we investigate the thermal equilibration of the holographic QCD model dual to the Einstein-Maxwell-Dilaton (EMD) gravity in the presence of an external electric field. The model captures the QCD features at finite…

High Energy Physics - Theory · Physics 2025-06-30 Sara Heshmatian , Fatemeh Ahmadi , Alexander Trounev

The recent detection of gravitational waves from merging neutron star events has opened a new window on the many unknown aspects of their internal dynamics. A key role in this context is played by the transition from baryon to quark matter…

High Energy Physics - Phenomenology · Physics 2019-10-08 Abha Rajan , Tyler Gorda , Simonetta Liuti , Kent Yagi

Using a unified hadron-quark effective model for the QCD equation of state, this paper studies the phase structure of strongly interacting matter in a wide range of temperature and baryonchemical potential. At small potentials the model…

High Energy Physics - Phenomenology · Physics 2013-08-22 Philip Rau , Jan Steinheimer , Stefan Schramm

We investigate quark-gluon plasma at nonzero density by using two holographic models for QCD based on either brane or Einstein-Maxwell-dilaton actions. We determine the parameters of these models through a systematic statistical fitting…

High Energy Physics - Theory · Physics 2024-11-04 Niko Jokela , Matti Järvinen , Aleksi Piispa

We extract the equation of state of hot quark matter from a holographic 2+1 flavor QCD model, which could form the core of a stable compact star. By adding a thin hadron shell, a new type of hybrid star is constructed. With the temperature…

High Energy Physics - Phenomenology · Physics 2026-01-01 Le-Feng Chen , Heng-Yi Yuan , Meng-Hua Zhou , Kun Lu , Jing-Yi Wu , Kilar Zhang