DNA分子在激光作用下的随机动力学研究

STUDY OF STOCHASTIC DYNAMICS ON DNA MOLECULES IN LASER ACTION

对激光与ＤＮＡ分子相互作用的问题，着重考虑了随机力和阻尼作用，建立了ＤＮＡ分子在激光作用下的Ｆｏｋｋｅｒ－Ｐｌａｎｃｋ方程（ＦＰＥ）。分析了ＤＮＡ分子系统的ＦＰＥ势函数，对ＤＮＡ遗传变异的随机不确定性现象进行了解释。定义了遗传信息态迁移率，发现影响信息态迁移率的大小是随机力、激光强度以及ＤＮＡ分子本身的特性协同作用的结果。

Fokker Planck equation (FPE) is built up, which is based on the study of DNA molecules in the action of laser, stochastics and damping. This paper analyses FPE potential fumction of DNA molecule system and explaines the uncertainty of DNA genetic variation. The mobility is defined, which results mainly from the interaction of stochastic force, laser strength and DNA molecules characters in commom.