Susceptibilities and speed of sound from the Polyakov-Nambu-Jona-Lasinio model
Susceptibilities and speed of sound from the Polyakov-Nambu-Jona-Lasinio model
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DOI：
10.1103/physrevd.73.114007
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发表时间：
2006-03
影响因子：
5
通讯作者：
S. Ghosh;T. Mukherjee;M. G. Mustafa;R. Ray
中科院分区：
文献类型：
--
作者：
S. Ghosh;T. Mukherjee;M. G. Mustafa;R. Ray
对于两种轻简并夸克$u$和$d$的polyakovi - nambu - jona - lasinio （PNJL）模型所描述的强相互作用物质，我们给出了夸克数化学势${\ensuremath{\mu}}_{0}={\ensuremath{\mu}}_{B}/3={\ensuremath{\mu}}_{u}={\ensuremath{\mu}}_{d}$中压强的Taylor展开系数。在${\ensuremath{\mu}}_{0}$中进行了8阶的扩展，结果与Lattice最近的估计一致。进一步得到了比热${C}_{V}$、声速的平方${V} _{s}^{2}$和共形测度$\mathcal{C}$。
We present the Taylor expansion coefficients of the pressure in quark number chemical potential ${\ensuremath{\mu}}_{0}={\ensuremath{\mu}}_{B}/3={\ensuremath{\mu}}_{u}={\ensuremath{\mu}}_{d}$, for the strongly interacting matter as described by the Polyakov-Nambu-Jona-Lasinio (PNJL) model for two light degenerate flavors of quarks $u$ and $d$. The expansion has been done up to eighth order in ${\ensuremath{\mu}}_{0}$, and the results are consistent with recent estimates from Lattice. We have further obtained the specific heat ${C}_{V}$, squared speed of sound ${v}_{s}^{2}$, and the conformal measure $\mathcal{C}$.