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arXiv 2212.09591hep-lat
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冷稠密重QCD的phase diagram

Towards the phase diagram of cold and dense heavy QCD

Amine Chabane, Owe Philipsen

摘要:

具有足够重的动力学夸克的QCD的热力学可以用一个三维的Polyakov圈有效理论来描述,该理论是经过截断特征标和跳跃展开后得到的。我们调查所得到的相图的低温平均场方法。考虑到化学势的重子数和同位旋,我们得到了明确的信号的液体-气体类型的过渡到重子物质在$μ_I=0$和玻色-爱因斯坦凝聚过渡在$μ_B=0$,以及它们的连接时,两个化学势都是非零的。

英文摘要:

The thermodynamics of QCD with sufficiently heavy dynamical quarks can be described by a three-dimensional Polyakov loop effective theory, obtained after a truncated character and hopping expansion. We investigate the resulting phase diagram for low temperatures by mean field methods. Taking into account chemical potentials for both baryon number and isospin, we obtain clear signals for a liquid-gas type transition to baryon matter at $μ_I=0$ and a Bose-Einstein condensation transition at $μ_B=0$, as well as for their connection when both chemical potentials are non-zero.

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