Molecular dynamics simulation for the baryon-quark phase transition at finite baryon density

Abstract

Abstract. We study the baryon-quark phase transition in a molecular dynamics (MD) of quark degrees of freedom at finite temperature and density. The baryon state at low density and temperature, and the deconfined quark state at high density and temperature are reproduced. We investigate the equations of state of matters with different u-d-s compositions. Then we draw phase diagrams in the temperaturedensity plane by this simulation. It is found that the baryon-quark transition is sensitive to the quark width. PACS. PACS-key discribing text of that key -PACS-key discribing text of that key

Properties of Hadron and Quark Matter Studied with Molecular Dynamics

“…We extend our previous MD model for zero temperature [ 5] to finite temperature. We prepare a cubic box having a length of 4 -10 fm, in which the same number of u and d quarks are contained, and impose a periodic boundary condition.…”

“…where H is a Hamiltonian used in Ref. [ 5]. The equations of motion are solved for several thousands fm/c after the system reached equilibrium.…”

“…However, dynamics of quarks and anti-quarks, which seems very important, was not considered in the study. In this paper we study the properties of QGP by employing a molecular dynamics (MD) which is a natural framework for describing both statical and dynamical aspects of the phase transition [ 5]. We first show thermodynamical behavior of quark matter at finite densities.…”

Hadronization from color interactions *

“…To study the microscopic dynamics of quark matter during the hadronization process dominated by nonperturbative QCD, the methods of MD simulation have been applied in recent years [23][24][25][26][27][28][29][30]. Ref.…”

“…Ref. [24] used quantum molecular dynamics to study quark phase transition of a quark system at finite density. A relativistic molecular dynamics approach based on Nambu-Jona-Lasinio (NJL) Lagrangian [31] was applied in Ref.…”