论文标题

范德华相互作用的强子共振气体中的Wiedemann-Franz定律的电导率,扩散率和违反。

Conductivity, diffusivity, and violation of Wiedemann-Franz Law in a hadron resonance gas with van der Waals interactions

论文作者

Pradhan, Kshitish Kumar, Sahu, Dushmanta, Scaria, Ronald, Sahoo, Raghunath

论文摘要

在这项工作中,已经研究了范德华(VDW)相互作用下的强子共振气体。已经考虑了介子 - 梅森和(抗)baryon-(抗)巴属之间的有吸引力和排斥性相互作用。通过在松弛时间近似下求解Boltzmann传输方程来估算各种传输属性,例如电导率($σ_{\ rm el} $)和热导率($κ_ {\ rm th} $)。对于上述可观察到的,也明确探索了bary势($μ_ {\ rm b} $)和温度的影响。与从其他现有理论模型获得的结果进行了比较。我们观察到在高温政权下的强子共振气体中违反了Wiedemann-Franz法律。还估计了相应的扩散性,这可以帮助我们以更好的方式理解系统。

In this work, a hadron resonance gas under van der Waals (VDW) interactions has been studied. Both attractive and repulsive interactions between the meson-meson and (anti)baryon-(anti)baryon have been taken into consideration. Various transport properties such as electrical conductivity ($σ_{\rm el}$) and thermal conductivity ($κ_{\rm th}$) have been estimated by solving the Boltzmann transport equation under the relaxation time approximation. The effect of baryochemical potential ($μ_{\rm B}$) and temperature is also explicitly explored for the mentioned observables. Comparisons have been made with the results obtained from other existing theoretical models. We observe the violation of Wiedemann-Franz law in a hadron resonance gas at a high-temperature regime. The corresponding diffusivities have also been estimated, which can help us to understand the system in a better way.

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