محاسبه انحنای اسکالر در مدل اسپینی مختلط چهارحالته و بررسی رفتار آن

 In various statistical mechanical models, introduction of a metric into space of prameters gives a new perspective to the phase structure. In this paper, the scalar curvature R of this metric for a one dimensional four-state complex spin model is calculated. It is shown that this parameter has a similar behaviour to the Ising and Potts models.