典型文献
QCD at finite temperature and density within the fRG approach:an overview
文献摘要：
In this paper,we present an overview on recent progress in studies of QCD at finite temperature and densities within the functional renormalization group(fRG)approach.The fRG is a nonperturbative continuum field approach,in which quantum,thermal and density fluctuations are integrated successively with the evolution of the renormalization group(RG)scale.The fRG results for the QCD phase structure and the location of the critical end point(CEP),the QCD equation of state(EoS),the magnetic EoS,baryon number fluctuations confronted with recent experimental measurements,various critical exponents,spectral functions in the critical region,the dynamical critical exponent,etc,are presented.Recent estimates of the location of the CEP from first-principle QCD calculations within fRG and Dyson-Schwinger equations,which pass through lattice benchmark tests at small baryon chemical potentials,converge in a rather small region at baryon chemical potentials of about 600 MeV.A region of inhomogeneous instability indicated by a negative wave function renormalization is found with μB(>)420 MeV.It is found that the non-monotonic dependence of the kurtosis of the net-proton number distributions on the beam collision energy observed in experiments could arise from the increasingly sharp crossover in the regime of low collision energy.
文献关键词：
中图分类号：
作者姓名：
Wei-jie Fu
作者机构：
School of Physics,Dalian University of Technology,Dalian,116024,China
文献出处：
引用格式：
[1]Wei-jie Fu-.QCD at finite temperature and density within the fRG approach:an overview)[J].理论物理,2022(09):295-351
A类：
fRG,nonperturbative,Schwinger
B类：
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AB值：
0.51832
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