scholarly journals Equation of state at finite temperature and chemical potential, lattice QCD results

2004 ◽  
Vol 2004 (05) ◽  
pp. 046-046 ◽  
Author(s):  
F Csikor ◽  
G.I Egri ◽  
Z Fodor ◽  
S.D Katz ◽  
K.K Szabo ◽  
...  
1988 ◽  
Vol 37 (12) ◽  
pp. 3702-3715 ◽  
Author(s):  
A. Le Yaouanc ◽  
L. Oliver ◽  
O. Pène ◽  
J.-C. Raynal ◽  
M. Jarfi ◽  
...  

2007 ◽  
Vol 22 (07n10) ◽  
pp. 457-471 ◽  
Author(s):  
M. P. LOMBARDO

A general introduction into the subject aimed at a general theoretical physics audience. We introduce the sign problem posed by finite density lattice QCD, and we discuss the main methods proposed to circumvent it, with emphasis on the imaginary chemical potential approach. The interrelation between Taylor expansion and analytic continuation from imaginary chemical potential is discussed in detail. The main applications to the calculation of the critical line, and to the thermodynamics of the hot and normal phase are reviewed.


1988 ◽  
Vol 38 (10) ◽  
pp. 3256-3265 ◽  
Author(s):  
A. Le Yaouanc ◽  
L. Oliver ◽  
O. Pène ◽  
J.-C. Raynal ◽  
M. Jarfi ◽  
...  

2007 ◽  
Vol 22 (07n10) ◽  
pp. 537-546 ◽  
Author(s):  
XIAO-LU YU ◽  
XIANG-QIAN LUO

Lattice QCD at finite temperature T and chemical potential μ is studied analytically in the strong coupling limit with overlap fermions. We start from the first order approximation of lattice action with generalized overlap (GO) fermions to derive an effective free energy written in terms of chiral condensate as a function of T and μ with the use of mean field approximation. We elucidate the phase structure on the (μ, T) plane and discover the tricritical point separating the first and the second order chiral phase transition. Discussion of the doubling problem and higher order terms are given.


2008 ◽  
Vol 23 (27n30) ◽  
pp. 2459-2464 ◽  
Author(s):  
A. OHNISHI ◽  
N. KAWAMOTO ◽  
K. MIURA

We examine the Brown-Rho scaling for meson masses in the strong coupling limit of lattice QCD with one species of staggered fermion. Analytical expression of meson masses is derived at finite temperature and chemical potential. We find that meson masses are approximately proportional to the equilibrium value of the chiral condensate, which evolves as a function of temperature and chemical potential.


1988 ◽  
Vol 37 (12) ◽  
pp. 3691-3701 ◽  
Author(s):  
A. Le Yaouanc ◽  
L. Oliver ◽  
O. Pène ◽  
J.-C. Raynal ◽  
M. Jarfi ◽  
...  

2010 ◽  
Vol 25 (37) ◽  
pp. 3081-3092 ◽  
Author(s):  
PÉTER PETRECZKY

We review recent progress in lattice QCD at nonzero temperature with emphasis on the calculations of equation of state and the properties of heavy quark–anti-quark pairs at high temperatures. We also briefly discuss the deconfinement and chiral symmetry restoring aspects of the QCD transition at finite temperature.


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