非零同位旋不对称的QCD

Proceedings of XIII Quark Confinement and the Hadron Spectrum — PoS(Confinement2018) Pub Date : 2018-11-14 DOI:10.22323/1.336.0260

B. Brandt, G. Endrődi, S. Schmalzbauer

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引用次数: 9

摘要

研究了具有交错夸克的非零同位旋不对称物理夸克质量下QCD的相图和热力学性质。特别地，我们给出了正态和介子凝聚相之间的相界和手性/非定界跃迁的连续结果。我们的研究结果表明，当同位旋化学势高达325 MeV时，介子凝聚相被限制在170 MeV。我们还用这些数据检验了泰勒展开方法的有效性范围，并给出了状态方程的初步结果。

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QCD at nonzero isospin asymmetry

We study the phase diagram and the thermodynamic properties of QCD at nonzero isospin asymmetry at physical quark masses with staggered quarks. In particular, continuum results for the phase boundary between the normal and the pion condensation phases and the chiral/deconfinement transition are presented. Our findings indicate that the pion condensation phase is restricted to $T\lesssim170$~MeV for isospin chemical potentials up to 325~MeV. We also use the data to test the range of validity of the Taylor expansion method and show first results for the equation of state.

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Proceedings of XIII Quark Confinement and the Hadron Spectrum — PoS(Confinement2018)

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