I will present latest results within the holographic Witten-Sakai-Sugimoto model for dense matter at nonzero baryon and isospin chemical potentials. In particular, I will discuss the phase structure including phases where baryonic matter and meson condensates coexist. As an application I will show that the results can be used to construct entire neutron stars, including the inhomogeneous...
One central question in nuclear astrophysics nowadays is determining the matter structure of neutron stars (NS). With the wealth of newly available and upcoming astrophysical observations, it is of most relevance to find ways to compare the characteristics of potential NS matter phase candidates with those gathered from NS observations. As part of these efforts, I will discuss how some unique...
The phase diagram of QCD is investigated by varying number of colors N_c within a Polyakov loop quark-meson chiral model. In particular, our attention is focused on the critical point(s); the critical point present for N_c=3 moves toward the mu_q-axis and disappears as soon as the number of color is increased. Yet, a distinct critical point emerges along the temperature axis for N_c=53 and...
The gigantic magnetic field, $B$, is expected in the heavy-ion collision and in the neutron star cores. The phase structure under $B$ has been well investigated, but the hadron properties are not fully understood. Recently, the lattice QCD found that even neutral meson masses are significantly affected by the $B$ effects. Then, what about baryons?
In this talk, I would like to emphasize...
Fluctuations play crucial role in determining properties of the QCD equation of state and transport in heavy-ion collision experiments. Recent progress in understanding evolution of fluctuations in relativistic hydrodynamics aims at providing predictive description of the fluctuations, including their non-gaussianity. The problem of connecting the predictions of hydrodynamics with experimental...
We discuss the transverse momentum broadening of hard probes traversing an evolving glasma, which is the earliest phase of the matter produced in relativistic heavy-ion collisions. The coefficient $\hat q$ is calculated using the Fokker-Planck equation, and an expansion in the proper time $\tau$ which is applied to describe the temporal evolution of the glasma. The correlators of the...
We show that in isentropic relativistic fluids the total helicity of a perfect electromagnetic fluid is conserved. The helicity conservation law can be reshaped in the form of a chiral anomaly equation.
For systems made up by massless fermions, we study how the helicity conservation law is modified in the presence of a chiral misbalance, when one has also to consider the effects of the chiral...
In order to understand the puzzle of the free energy of an individual quark in QCD, we explicitly construct ensembles with quark numbers 𝑁𝑉≠0mod3, corresponding to non-zero triality in a finite subvolume 𝑉 on the lattice. We first illustrate the basic idea in an effective Polyakov-loop theory for the heavy-dense limit of QCD, and then extend the construction to full Lattice QCD, where the...
The structure of the gluonic vacuum is examined at finite temperature in lattice QCD. The topological charge density on individual Monte Carlo gauge field configurations is calculated, and an algorithm is applied to detect topological objects associated with local extrema. These objects are found to have a distribution of fractional topological charge, and the nature of this distribution...
In this talk, the anomalous transport properties of the spatially inhomogeneous phase of dense quark matter known as the Magnetic Dual Chiral Density Wave (MDCDW) phase will be reviewed. I will discuss several anomalous electromagnetic effects that can take place in this phase at low temperatures and intermediate baryonic densities. I will present the axion electrodynamics characterizing this...
