Study of chiral symmetry in lattice QCD at finite temperature and baryon density in the strong-coupling limit

1987 ◽  
Vol 35 (4) ◽  
pp. 1442-1446 ◽  
Author(s):  
Adriana Moreo
Keyword(s):  
Lattice Qcd ◽  
Strong Coupling ◽  
Chiral Symmetry ◽  
Finite Temperature ◽  
Baryon Density ◽  
Strong Coupling Limit

scholarly journals BROWN-RHO SCALING IN THE STRONG COUPLING LATTICE QCD

2008 ◽  
Vol 23 (27n30) ◽  
pp. 2459-2464 ◽  
Author(s):  
A. OHNISHI ◽  
N. KAWAMOTO ◽  
K. MIURA
Keyword(s):  
Lattice Qcd ◽  
Strong Coupling ◽  
Finite Temperature ◽  
Chemical Potential ◽  
Chiral Condensate ◽  
Strong Coupling Limit ◽  
Analytical Expression

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.

scholarly journals The strong coupling limit of SU(2) QCD at finite baryon density

1986 ◽  
Vol 169 (4) ◽  
pp. 421-427 ◽  
Author(s):  
E. Dagotto ◽  
F. Karsch ◽  
A. Moreo
Keyword(s):  
Strong Coupling ◽  
Baryon Density ◽  
Strong Coupling Limit

scholarly journals Phase Structures of Strong Coupling Lattice QCD with Overlap Fermions at Finite Temperature and Chemical Potential

2007 ◽  
Vol 22 (07n10) ◽  
pp. 537-546 ◽  
Author(s):  
XIAO-LU YU ◽  
XIANG-QIAN LUO
Keyword(s):  
Lattice Qcd ◽  
Strong Coupling ◽  
Finite Temperature ◽  
Chemical Potential ◽  
Order Approximation ◽  
Tricritical Point ◽  
Chiral Condensate ◽  
Mean Field Approximation ◽  
Lattice Action ◽  
Chiral Phase

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.

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