Some Entropy In The Thermodynamic Phase Transition

We try to investigate the finite-temperature phase transitions by the partial entropy method.Thetwo-dimensional Ising model is studied by Monte Carlo Simulation . The partial entropy capturesthe common information on critical fluctuations , such as the critical temperature , the criticalexponents.We get some results as follow:1. The partial entropy method provides a good tool to quantify the finite-temperature phase transitions.2. We get the critical temperature and the critical exponents both in periodic system and quasiperiodic system.3. The critical exponents in periodic system is the same as the critical exponents in quasiperiodic system.4. There is a second order phase transition both in periodic system and quasiperiodic system.,but there is a infinite order phase transition in disorder system.We agree with that the partial entropy method is a good method to quantify the finite-temperature phase transitions by our work.