Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-12-18
Phys.Rev. D53 (1996) 5100-5104
Physics
High Energy Physics
High Energy Physics - Phenomenology
10 Pages including 2 figures, Latex{ReVTex} source file. Figures included seperately as figures.uu
Scientific paper
10.1103/PhysRevD.53.5100
It was recently observed in a lattice QCD measurement that the chiral condensate in the quenched approximation shows dramatically different behavior in the three $Z_3$-equivalent de-confined phases. We argue that this phenomenon can be understood qualitatively as an effect of $Z_3$ twists on fermionic fields. Quarks under these $Z_3$-twists become global anyons and hence display different thermodynamic properties. We further show that the lattice data can be roughly modeled by a Nambu-Jona-Lasinio type Lagrangian with a minimal coupling to a constant gauge field $A_0=2\pi nT/3$ (with $n=0$, $\pm1$), which arises naturally from the non-trivial phase of the Polyakov line.
Chandrasekharan Shailesh
Huang Suzhou
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