本文主要研究利用各向异性三比特海森堡XXZ模型实现量子稠密编码的理论可行性问题并讨论在有限温度下,xy平面上的耦合常数J,z方向的耦合常数Jz,以及外加磁场对稠密编码信道容量的影响。结果表明,耦合常数J对量子稠密编码信道容量起到积极作用。尽管耦合常数Jz,外加磁场B及温度T均抑制量子稠密编码的信道容量,但是在一定范围内J总可以抵消这些参数的消极作用并提高信道容量。 In this paper, the theoretical feasibility of quantum dense coding using the anisotropic three-point Heisenberg XXZ model is studied and the coupling constants Jz and zz in the xy plane at finite temperatures are discussed. Impact of encoding channel capacity. The results show that the coupling constant J plays a positive role in the capacity of quantum dense coding channel. Although the coupling constant Jz, the applied magnetic field B and the temperature T all suppress the quantum dense coding channel capacity, J can always counteract the negative effect of these parameters and increase the channel capacity within a certain range.