论文标题
温致密氢中等离子体相变的激子性质
Exciton nature of plasma phase transition in warm dense fluid hydrogen
论文作者
论文摘要
在过去的几十年中,温暖的液体氢从绝缘体从绝缘子到导电状态,温度为1000-5000 K,温度为1000-5000 K。各种实验方法的使用尚未导致获得可靠的一致结果,尽管进行了许多尝试,但理论方法尚未能够解释现有的差异,以及氢流体过渡到导电状态的机制的微观性质。在这项工作中,我们发现了与激子对形成和解离相关的过渡的关键机制,该机制允许解释从分子状态到血浆的氢过渡的几个阶段。该机制能够对几个实验结果进行定量描述,并解决不同实验研究之间的差异。
The transition of a warm dense fluid hydrogen from insulator to a conducting state at pressures of the order of 20-300 GPa and temperatures of 1000-5000 K has been the subject of active scientific research over the past few decades. The use of various experimental methods has not yet led to obtaining reliable consistent results, and despite numerous attempts, theoretical methods have not yet been able to explain the existing discrepancies, as well as the microscopic nature of the mechanism for the transition of hydrogen fluid to a conducting state. In this work, we have discovered a key mechanism of the transition associated with formation and dissociation of exciton pairs, which allows to explain several stages of the transition of hydrogen from molecular state to plasma. This mechanism is able to give quantitative description of several experimental results as well as to resolve the discrepancies between different experimental studies.