transition probability matrix

In this paper, the four-energy-level coupling transition is calculated by means of the matrix equation, the result is obtained that the probability of the absorbing process of the three-photon and the cube of the intensity are in the direct rate;

本文应用密度矩阵方程对四能级耦合跃迁进行了计算，得出了三光子吸收过程所占的几率与光强的三次方成正比的具体结果；

DMC is symmetric if its transition probability matrix is symmetric.

如果转移概率矩阵是对称的,则称DMC是对称的.

According to the transition probability matrix combining with stand original distribution, the change of stand structure in fifteen years was modeled.

根据转移概率参数（a、b）和进界生长参数（d）可以得到落叶松的转移概率矩阵，结合其初始分布可模拟15年后林分的结构变化。

The dey to utilizing of Markov chain to forecast is the calculation of transition probability matrix.

利用马尔可夫链进行预测，其关键是转移概率矩阵的计算。