2014/10/07 by Ydalia Delgado Mercado, Mercado, Ydalia Delgado, Pascal Törek +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #Statistical Mechanics (cond-mat.stat-mech) #cond-mat.stat-mech #hep-lat
paper · pdf · doi:10.48550/arxiv.1410.1645
PoS(LATTICE2014)203
arxiv created 2014/10/07 · arxiv updated 2014/10/08
In this contribution we apply a new variant of the density of states method to the Z3 spin model at finite density. We use restricted expectation values evaluated with Monte Carlo simulations and study their dependence on a control parameter lambda. We show that a sequence of one-parameter fits to the Monte-Carlo data as a function of lambda is sufficient to completely determine the density of states. We expect that this method has smaller statistical errors than other approaches since all generated Monte Carlo data are used in the determination of the density. We compare results for magnetization and susceptibility to a reference simulation in the dual representation of the Z3 spin model and find good agreement for a wide range of parameters.