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The phase transition to the quark-gluon plasma from lattice QCD

机译:从格子QCD到夸克 - 胶质等离子体的相位过渡

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In the first period after the start of finite temperature studies for QCD on the lattice, in 1981, essentially pure SU(2) and SU(3) gauge theory results and a few quenched (i.e., without dynamical quarks) full QCD results were available, all on small lattices. Since then large lattices have come into use for pure SU(2) and SU(3) investigations. On medium size lattices full QCD simulations incorporating dynamical quarks of 0.5 up to 12 flavours and for many differnet quark mass values have been performed. Thsi survey does not cover all of the existing papers on the subject. So we shall omit any details of fermion updates, do not discuss Wilson fermions and other topics, which might be of interest. Also, the attempts made so far to include non-zero chemical potential will not be reviewed, because up to now no realistic (not strong coupling) calculations exist. For more information we suggest to read the conference reviews of fall 1988 by A. Ukawa~1, M.Fukugita~2 and F.Karsch~3. There are some promising new developments since the Lattice 88 and Quark Matter 88 conferences on which we shall report: - the order of the finite temperature transition in models related to the pure SU(3) gauge theory; - first results for full QCD on lattices with large time extend (N_r=8); - the solution of the continuum and lattice perturbation theory discrepancy for the full QCD energy density.
机译:在晶格上的QCD的有限温度研究开始后的第一个时期,在1981年,基本上纯苏(2)和SU(3)尺度理论结果和少数淬火(即没有动态夸克)的全QCD结果,全部在小格子上。从那时起,大型格子已经用于纯su(2)和su(3)调查。在中等尺寸格子上,整个QCD模拟,并入为0.5至12口味的动态QUARK,并且已经进行了许多不同的区别夸克质量值。 THSI调查没有涵盖主题上的所有现有论文。因此,我们将省略对费米子更新的任何细节,不要讨论威尔逊的费米子和其他可能感兴趣的话题。此外,迄今为止未包括非零化学潜力的尝试将不会被审查,因为到目前为止没有现实(不强耦合)计算。有关更多信息,我们建议阅读1988年秋季的会议审查A. Ukawa〜1,M.Fukugita〜2和F.Karsch〜3。自格子88和夸克问题88会议以来,我们将报告的六十八八会议有一些有希望的新发展: - 与纯SU(3)尺度理论有关的模型中有限温度过渡的顺序; - 在具有大时间延伸的格子上的全QCD的首先​​结果(N_R = 8); - 对整个QCD能量密度的连续内和晶格扰动理论的解决方案。

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