Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2004-01-07
Phys.Rev. D69 (2004) 094506
Physics
High Energy Physics
High Energy Physics - Lattice
20 page, 6 figures
Scientific paper
10.1103/PhysRevD.69.094506
We comment on the reweighting method for the study of finite density lattice QCD. We discuss the applicable parameter range of the reweighting method for models which have more than one simulation parameter. The applicability range is determined by the fluctuations of the modification factor of the Boltzmann weight. In some models having a first order phase transition, the fluctuations are minimized along the phase transition line if we assume that the pressure in the hot and the cold phase is balanced at the first order phase transition point. This suggests that the reweighting method with two parameters is applicable in a wide range for the purpose of tracing out the phase transition line in the parameter space. To confirm the usefulness of the reweighting method for 2 flavor QCD, the fluctuations of the reweighting factor are measured by numerical simulations for the cases of reweighting in the quark mass and chemical potential directions. The relation with the phase transition line is discussed. Moreover, the sign problem caused by the complex phase fluctuations is studied.
No associations
LandOfFree
Remarks on the multi-parameter reweighting method for the study of lattice QCD at non-zero temperature and density does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Remarks on the multi-parameter reweighting method for the study of lattice QCD at non-zero temperature and density, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Remarks on the multi-parameter reweighting method for the study of lattice QCD at non-zero temperature and density will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-114153