论文标题
QED血浆在极高的温度和密度下
QED Plasma at Extremely High Temperature and Density
论文作者
论文摘要
我们在实时形式主义中使用QED（量子电动力学）的重新归一化方案来计算理论的有效参数，表明在极高的温度和极高的密度下存在相对论QED血浆。高密度血浆在恒星核心内发现，而高温QED血浆只能在早期宇宙中中微子解耦温度（在核合成完成之前）之后才存在。在热培养基中通过真空极化与介质的辐射夫妇。在介质中计算真空极化张量，在这种介质中研究了辐射对物质的影响。我们明确计算了QED等离子体的参数，例如等离子频率，Debye屏蔽长度以及分别在温度和超级密度介质的温度和密度方面的传播频率。这项研究有助于了解超级和超密集系统中QED血浆的短期存在。
We use the renormalization scheme of QED (Quantum Electrodynamics) in real-time formalism to calculate the effective parameters of the theory, indicating the existence of relativistic QED plasma at extremely high temperatures and extremely high densities. High-density plasma is found inside the stellar cores and high temperature QED plasma could only exist, right after the neutrino decoupling temperature in the early universe, before the nucleosynthesis is complete. Radiation couples with the medium through the vacuum polarization in a hot and dense medium. Calculating the vacuum polarization tensor in a medium, the effect of radiation on matter is investigated in such a medium. We explicitly compute the parameters of QED plasma such as plasma frequency, Debye shielding length and the propagation frequency in terms of temperature and density of the superhot and superdense medium, respectively. This study helps to understand short term existence of QED plasma in the superhot and superdense systems.
