论文标题
QCD在非零的等音和陌生化学潜力上的阶段,并应用于斜恒星
Phases of QCD at nonzero isospin and strangeness chemical potentials with application to pion stars
论文作者
论文摘要
我们使用有限的同胞素和陌生夸克化学势μ和μs的三种味道扰动理论研究斜向和kaon缩合。该相图由真空相和三个不同的玻璃凝结相,带有带电亲的冷凝物以及带电和中性的kaons。添加电磁相互作用,带电冷凝物的相变为希格斯相,并且由于介子的电磁质量分裂而对所得相图进行了修改。 Pion键相的结果应用于计算PION恒星的质量 - 拉迪乌斯关系。局部电荷中立性是通过添加电子,兆子与中子一起施加的。最后,我们将Mass-Radius关系的结果与最近的晶格模拟的结果进行了比较,并找到了很好的共识。
We study pion and kaon condensation using three-flavor chiral perturbation theory at finite isospin and strangeness quark chemical potentials μI and μS . The phase diagram consists of a vacuum phase and three distinct Bose condensed phases with condensates of charged pions as well as charged and neutral kaons. Adding electromagnetic interactions, a phase with a charged condensate becomes a Higgs phase and the resulting phase diagram is modified due to the electromagnetic mass splittings of the mesons. The results for the pion-condensed phase are applied to calculate mass-radius relation of pion stars. Local electric charge neutrality is imposed by adding electrons, muons together with their neutrionos. Finally, we compare our results for the mass-radius relations with those from recent lattice simulations, and find very good agreement.