arXiv subjects

Yuka Akimura

Publications and source records attributed to Yuka Akimura.

2 recordsLinked to original sources

arXiv2005

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

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 temperature-density plane by this simulation. It is found that the baryon-quark transition is sensitive to the quark width.

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arXiv2004

Stability and structure of quark matter in a molecular dynamics framework

We study stability and structure of quark matters as a function of density in a framework of molecular dynamics (MD). Using appropriate effective interactions and the frictional cooling method, we search for the minimum energy of the system. Transition from confined to deconfined phase is observed at densities of 2 -- 3$ρ_0$, where $ρ_0$ is the nuclear matter saturation density. The $uds$ matter becomes more stable than the charge-neutral $ud$ matter at 3$ρ_0$, but the $udd$ matter is the most stable even at high density.

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