随着实验技术的突破，温稠密、热稠密等离子体辐射输运和辐射不透明度研究日益成为物理学前沿领域课题。传统的辐射输运方程用比强度描述了辐射在等离子体中的传播，这对应直线传播的几何光学极限时的规律，对高于固体密度的稠密等离子体，会出现影响辐射输运和不透明度的新物理效应。稠密等离子体中谱线宽度很大，从而导致光子的相干长度变短，当光子相干长度大于其平均自由程但又可以比拟时，光子相干效应会影响光子在等离子体中的吸收，这时光子会表现出由海森堡不确定性关系和量子干涉等物理特性决定的量子性质，这些量子效应没有包括在传统辐射输运方程中。光子相干效应对辐射输运和不透明度影响的研究在惯性约束聚变和天体物理等领域很有意义，本项目在二次量子化理论框架内，研究光子相干效应对辐射输运的影响，进而研究对辐射不透明度的物理效应，利用光子的Wigner分布函数，建立光子输运的物理模型，研究光子相干引起的对光子吸收的物理效应。

With the development of experimental technology, the radiative transfer and radiative properties of warm and hot dense plasmas are cuurent research frontiers of physics. The conventional radiative transfer equation governs the evolution of the specific intensity (the radiative energy flux per unit frequency per unit solid angle), where the light is described by pointlike particles propagating along rays, i.e., geometrical optics limit. For plasmas with mass density higher than solid density, some new physical effects on the radiative transfer and opacity will appear. The high plasma density will result in a shorter coherence length for line radiation in plasmas. When cohernece length is comparable to the photons' mean free paths, a new absorption mechanism will arise due to nonclassical features of photons such as Heisenberg's uncertainty priciple and quantum interference. The researches on the coherence effects on the radiative transfer and opacity are useful in many fields such as inertial confinement fusion and astrophysics, yet no detailed investigations were found in the literature. This project investigates the coherence effects on the radiative processes and opacity of dense plasmas in the theoretical frame of atomic physics and the second quantization. The physical model of quantum transport will be developed according to the quantum Liouville equation based on the one-photon Wigner distribution function.