Abstract
In recent years there has been much progress on the investigation of the QCD phase diagram with lattice QCD. This work will focus on the developments in the last few years with physical parameters and low chemical potential which are obtained by extrapolations from zero or imaginary chemical potential.
Highlights
The investigation of the QCD phase diagram has been a very active topic for many years
It is an obvious choice to turn to when instigating the QCD phase diagram
This work will review recent results obtained from lattice QCD simulations with physical parameters at low finite μB by extrapolations from zero or imaginary μB
Summary
The investigation of the QCD phase diagram has been a very active topic for many years. Other methods are necessary to gain insight at finite μB physics from lattice QCD. This work will review recent results obtained from lattice QCD simulations with physical parameters at low finite μB by extrapolations from zero or imaginary μB. [2,3,4,5,6,7]), some observables can be discribed by an analytic function in the vicinity of zero This fact can be exploited, by using results at imaginary or zero chemical potential. The χBjkS can be measured on zero μ lattices Another expansion from which results will be discussed in this work, is the so called fugacity expansion or sector method. The expansion coefficients PBjkS have to be determined either from the χBjkS or from imaginary chemical potential. On the other hand the Taylor expansion convergences rapidly in the high temperature limit
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