Jul 24 – 30, 2016
Highfield Campus, University of Southampton
Europe/London timezone

Functional Fit Approach (FFA) for Density of States method: SU(3) spin system and SU(3) gauge theory with static quarks

Jul 26, 2016, 3:00 PM
Building 32 Room 1015 (Highfield Campus, University of Southampton)

Building 32 Room 1015

Highfield Campus, University of Southampton

Talk Nonzero Temperature and Density Nonzero Temperature and Density


Mr Mario Giuliani (University of Graz)


We study new developments for the Density of States (DoS) method to simulate systems affected by the complex action problem. In particular we use the functional fit approach (FFA). It consists of a restricted Monte Carlo simulation with an additional Boltzmann factor, which allows one to explore the DoS for a given part of the spectrum. We fit the simulation data with a known function to obtain the parameters of the DoS. We apply the approach to two model systems: 1) The SU(3) spin system with a chemical potential; 2) The SU3 gauge theory with static quarks. We discuss the technical challenges and the potential of FFA DoS.

Primary author

Mr Mario Giuliani (University of Graz)


Prof. Christof Gattringer (University of Graz) Mr Pascal Toerek (University of Graz)

Presentation materials