论文标题
磁透明系数和热强生气体的NERNST系数
Magneto-Seebeck coefficient and Nernst coefficient of hot and dense hadron gas
论文作者
论文摘要
我们在强子共振气体模型的框架内讨论热和致密的强子气体的热电效应。使用相对论的玻尔兹曼方程在弛豫时间近似中，我们估计温度和巴属化学势具有梯度的热和密集的HADRONIC培养基的Seebeck系数。该计算中的HADRONIC介质由具有HADRON的强子共振气体（HRG）模型对其进行建模，其共振量达到质量临界值$λ\ sim 2.6 $ GEV。我们还扩展了热电效应的形式主义，以实现非变化磁场。除了磁性观察系数外，磁场的存在还导致了热和致密的辐射物质的Hall型热电系数（Nernst系数）。我们发现，在存在磁场的情况下，Seebeck系数逐渐减小，而NernST系数随磁场的增加而降低。在较高的温度和/或重子化学势下，这些系数在消失的磁场下的值接近其值。
We discuss the thermoelectric effect of hot and dense hadron gas within the framework of the hadron resonance gas model. Using the relativistic Boltzmann equation within the relaxation time approximation we estimate the Seebeck coefficient of the hot and dense hadronic medium with a gradient in temperature and baryon chemical potential. The hadronic medium in this calculation is modeled by the hadron resonance gas (HRG) model with hadrons and their resonances up to a mass cutoff $Λ\sim 2.6$ GeV. We also extend the formalism of the thermoelectric effect for a nonvanishing magnetic field. The presence of magnetic field also leads to a Hall type thermoelectric coefficient (Nernst coefficient) for the hot and dense hadronic matter apart from a magneto-Seebeck coefficient. We find that generically in the presence of a magnetic field Seebeck coefficient decreases while the Nernst coefficient increases with the magnetic field. At higher temperature and/or baryon chemical potential these coefficients approach to their values at vanishing magnetic field.
