Numerical study of QCD phase transition at finite temperature

Author(s)

Rafael Bertolini Frigori

• Document type: Master's Dissertation
• Press: São Carlos.
• Institution: Universidade de São Paulo (USP). Instituto de Física de São Carlos (IFSC/BT)
• Defense date: 2005-02-25

Examining board members

Tereza Cristina da Rocha Mendes; Luiz Agostinho Ferreira; Gastão Inácio Krein

• Advisor: Tereza Cristina da Rocha Mendes

Abstract

In our numerical simulations, we have done a careful analysis of Monte-Carlo algorithms usually applied in the thermalization of gauge theories and continuous-spin systems. Among them we present a new proposal that enables a reduction of roughly 25% in the computational time. We apply this new algorithm to a numerical study of the at finite temperature, using lattices with 502 x 4 sites. We also use Finite-Size-Scaling techniques, Short-Time Dynamics and Variational Methods to extract critical exponents and the spectrum of screening masses of the theory. (AU)