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arXiv 2310.09427nucl-thhep-lathep-ph
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QCD不等式与格点QCD对状态方程的约束

Bounds on the Equation of State from QCD Inequalities and Lattice QCD

Yuki Fujimoto, Sanjay Reddy

AI总结:

利用QCD不等式和格点QCD数据,推导出有限重子化学势下状态方程的上下界,并应用于重离子碰撞相关密度。研究提出新方法并给出稳健约束。

摘要:

我们利用QCD不等式以及近期格点QCD对非零同位旋化学势下物质热力学性质的计算结果,推导出有限重子化学势下状态方程(EoS)的稳健界限。我们使用格点数据推导出在给定重子化学势下对称核物质重子密度的上界,以及作为能量密度函数的压强的下界。我们还利用了早期工作中高密度QCD状态方程的微扰计算约束以及因果性,来描绘出与重离子碰撞相关的密度下同位旋对称物质状态方程的稳健界限。

英文摘要:

We derive robust bounds on the equation of state (EoS) at finite baryon chemical potential using QCD inequalities and input from recent lattice-QCD calculations of thermodynamic properties of matter at nonzero isospin chemical potential. We use lattice data to deduce an upper bound on the baryon density of the symmetric nuclear matter at a given baryon chemical potential and a lower bound on the pressure as a function of the energy density. We also use constraints from perturbative calculations of the QCD EoS at high density derived in earlier work and causality to delineate robust bounds on the EoS of isospin symmetric matter at densities relevant to heavy-ion collisions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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