大n极限下长程作用Ginzburg-Landau模型的短时临界行为

Short - time critical behaviour of the Ginzburg - Landau model with long- range interactions in the large- n limit

得到长程作用Ginzburg-Landau模型的动力学作用量泛函。研究系统从高温淬火至临界温度后,大n极限下的序参量的短时临界行为。取得初始临界指数θ′。

The dynamieal action functional of the Ginzburg-Landau model with long-range interactions is obtained. After the system quenches from the very high temperature to eritical temperature, the short-time behaviour of the magnetization parameter in the large-n limit is studied. The initial critical exponent θ' is given out.