论文标题
对称的状态方程
Equation of state from symmetry
论文作者
论文摘要
状态方程（EOS）描述了物质的热力学特性。它在许多领域中具有重要的应用，例如电力力学，地球物理，天体物理学和爆炸物理学。当前，大多数EOSS都是使用理想气体EOS作为基本框架构建的。但是，这对于远离理想气体状态的高压或低温的物质是不合适的。在这里，我们提取了一个与理想气体对称的“理想固体”概念，并提出了其EOS。我们验证理想的固体EOS代表高压和低温限制状态的热力学特性。它表明物质的热力学特性具有对称特征。然后，我们通过理想气体和理想的固体极限的插值来开发通用模型。我们验证了通用EOS在较大区域中具有很高的描述准确性。理想固体及其EOS的概念可能为发展EOS理论的发展提供了新的方向。
Equation of state (EOS) describes the thermodynamic properties of substances. It has important applications in many fields such as power mechanics, geophysics, astrophysics, and detonation physics. Currently, most EOSs have been constructed using the ideal gas EOS as the base framework. However, this is inappropriate for the substances with high pressures or low temperatures that are far from the ideal gas state. Here we extract a concept of "ideal solid" that is symmetrical with ideal gas and propose its EOS. We verify that the ideal solid EOS represents the thermodynamic properties of the high-pressure and low-temperature limiting state. It indicates that the thermodynamic properties of substances have symmetrical characteristic. Then we develop a universal model by interpolation of the ideal gas and the ideal solid limits. We verify that the universal EOS has high description accuracy in a wide region. The concept of ideal solid and its EOS potentially provides a new direction for the development of the EOS theory.
