Описание
Discussion leader: Jens O. Andersen
Chairperson: Gergely Endrődi
QCD at finite isospin is interesting for a number of reasons. One of them is that it is free of the sign problem and therefore amenable to lattice simulations.
In this talk, I will discuss recent results for two and three flavor chiral perturbation theory
at finite isospin. I will present results for the pressure, pion and quark condensates and isospin density. The results will be compared to...
We discuss the properties of homogeneous and inhomogeneous meson condensates in the framework of chiral perturbation theory. We compare the results on the homogeneous pion condensate obtained in chiral perturbation theory with those of lattice QCD showing that there is good agreement for isospin chemical potentials up to about 2 m_\pi. Then, we turn to inhomogeneous phases, presenting the...
We study the thermodynamic properties of QCD at nonzero isospin chemical potential using improved staggered quarks at physical quark masses. In this talk, we will discuss the extraction of the equation of state and show results at zero and nonzero temperatures. As an application, we briefly discuss its relevance for the trajectory of the early Universe at nonzero lepton asymmetry.
In this talk, I will discuss the zero-temperature phase diagram of finite isospin chiral perturbation theory in a uniform, external magnetic field. Since pions enter a superfluid state for chemical potentials larger than the pion mass and are electromagnetically charged, they become superconducting in the presence of a magnetic field. They exhibit type-II superconductivity and support stable...
In mean-field approximation, the Polyakov linear-sigma model (PLSM) with u-, d-, and s-quark flavors is utilized in analyzing the chiral condensates and the deconfinement order parameters, at non-zero isospin density. The results obtained on the bulk thermodynamics including pressure density, interaction measure, susceptibility and second-order correlations with baryon, strange and electric...
