Y-stringlike behavior of a static baryon at finite temperature

Oscillations of the Static Meson Fields at Finite Baryon Density

The spatial dependence of static meson correlation functions at finite baryon density is studied in the Nambu – Jona-Lasinio model. In contrast to the finite temperature case, we find that the correlation functions at finite density are not screened but exhibit long-range oscillations. The observed phenomenon is analogous to the Friedel oscillations in a degenerate electron gas.

Revisiting strong coupling QCD at finite temperature and baryon density

The strong coupling limit (βgauge = 0) of lattice QCD with staggered fermions enjoys the same non-perturbative properties as continuum QCD, namely confinement and chiral symmetry breaking. In contrast to the situation at weak coupling, the sign problem which appears at finite density can be brought under control for a determination of the full (μ ,T ) phase diagram by Monte Carlo simulations. F...

Non-static Dimensional Reduction of QED3 at Finite Temperature

We study an extreme non-static limit of 2+1-dimensional QED obtained by making a dimensional reduction so that all fields are spatially uniform but time dependent. This dimensional reduction leads to a 0+1-dimensional field theory that inherits many of the features of the 2+1-dimensional model, such as Chern-Simons terms, time-reversal violation, an analogue of parity violation, and global U(2)...

Microscopic baryon-baryon interactions at finite density and hypernuclear structure

A semi-variational approach to QCD at finite temperature and baryon density

Recently a new bosonization method has been used to derive, at zero fermion density, an effective action for relativistic field theories whose partition function is dominated by fermionic composites, chiral mesons in the case of QCD. This approach shares two important features with variational methods: the restriction to the subspace of the composites, and the determination of their structure f...