2003/09/22 by Slavo Kratochvila, Philippe de Forcrand
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat
paper · pdf · doi:10.1016/s0920-5632(03)02632-x
published as Prog.Theor.Phys.Suppl. 153 (2004) 330-334; Nucl.Phys.Proc.Suppl. 129 (2004) 533-535 · Lattice2003(nonzero), 3 pages, 5 figures
arxiv created 2003/09/22 · openalex publication_date 2004/03/01 · arxiv updated 2009/12/01 · openalex created_date 2017/04/07 · openalex updated_date 2026/07/29
While the grand canonical partition function ZGC(mu) with chemical potential mu explicitly breaks the Z3 symmetry with the Dirac determinant, the canonical partition function at fixed baryon number ZC(B) is manifestly Z3-symmetric. We compare ZGC(mu=0) and ZC(B=0) formally and by numerical simulations, in particular with respect to properties of the deconfinement transition. Differences between the two ensembles, for physical observables characterising the phase transition, vanish with increasing lattice size. We show numerically that the free energy density is the same for both ensembles in the thermodynamic limit.