A New Approach about Determining the Phase Transition Point in Variational-Cumulant Expansion
- Received Date: 2000-03-13
- Accepted Date: 1900-01-01
- Available Online: 2001-02-05
Abstract: Based on Variational-cumulant expansion (VCE), through calculating Polyakov line in the SU(2) gauge model at finite temperature and considering the similarity of finite size interaction in VCE method with the finite volume effect in Monte Carlo (MC) simulation, a new approach is adopted to determine the critical couplings for the deconfinement phase transition. New results of VCE which are close to MC data manifest that new approach is much more effective than the traditional one and show that VCE analysis is consistent with MC simulation.