夸克物质的热电输运系数
Thermoelectric transport coefficients of quark matter
摘要：
导电介质中的热梯度和/或化学电势梯度可导致电场，即被称为热电效应或塞贝克效应的效应。在重离子碰撞的背景下，我们在Nambu-JonaLasinio（NJL）模型的范围内估计了夸克物质的热电输运系数。我们估计的热导率，电导率，和塞贝克系数的热和密集的夸克物质。这些系数的计算使用相对论玻尔兹曼输运方程内弛豫时间近似。在NJL模型下，通过介质内介子交换，由夸克-夸克和夸克-反夸克散射估算了夸克的弛豫时间。
英文摘要：
A thermal gradient and/or a chemical potential gradient in a conducting medium can lead to an electric field, an effect known as thermoelectric effect or Seebeck effect. In the context of heavy-ion collisions, we estimate the thermoelectric transport coefficients for quark matter within the ambit of the Nambu-Jona Lasinio (NJL) model. We estimate the thermal conductivity, electrical conductivity, and the Seebeck coefficient of hot and dense quark matter. These coefficients are calculated using the relativistic Boltzmann transport equation within relaxation time approximation. The relaxation times for the quarks are estimated from the quark-quark and quark-antiquark scattering through in-medium meson exchange within the NJL model.
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