Finite Density Simulations with Canonical Ensemble

Details Finite Density Simulations with Canonical Ensemble Finite Density Simulations with Canonical Ensemble

2008-10-14

arxiv.org/abs/0810.2349v1

PoS LATTICE2008:178,2008

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 7 figures, Talk given at the XXVI International Symposium on Lattice Field Theory, July 14 - 19 2008, Williamsburg, V

Scientific paper

QCD at non-zero baryon density is expected to have a critical point where the zero-density cross-over turns into a first order phase transition. To identify this point we scan the density-temperature space using a canonical ensemble method. For a given temperature, we plot the chemical potential as a function of density looking for an "S-shape" as a signal for a first order transition. We carried out simulations using Wilson fermions with $m_\pi \approx 1{GeV}$ on $6^3\times 4$ lattices. As a benchmark, we ran four flavors simulations where we observe a clear signal. In the two flavors case we do not see any signal for temperatures as low as $0.83 T_c$. Preliminary results for the three flavor case are also presented.

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