Nuclear Physics & RIKEN Theory Seminar

"Histogram method for the calculation of QCD equation of state at finite density"

Presented by Shinji Ejiri, Niigata University

Friday, October 7, 2011, 2:00 pm — Small Seminar Room, Bldg. 510

We propose a new approach to finite density lattice QCD based on a histogram method and discuss the QCD phase structure at high temperature and density. Because the quark determinant is complex at finite density, the Monte-Carlo method cannot be applied directly. We use a reweighting method and try to solve the problems which arise in the reweighting method, i.e. the sign problem and the overlap problem. We discuss the quark mass and chemical potential dependence of the probability distribution function and examine the applicability of the approach.

Hosted by: Frithjof Karsch

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