用有效动力学理论研究热碰撞磁化QCD介质的热电行为
Thermoelectric behaviour of hot collisional and magnetized QCD medium from an effective kinetic theory
摘要:
在有效动力学理论的框架下,采用准粒子模型,考虑热介质效应,研究了夸克-胶子等离子体的热电行为。介质的热电响应已被量化的塞贝克系数。利用弛豫时间近似和有效Boltzmann方程中的Bhatnagar-Gross-Krook碰撞核,估计了QCD介质的碰撞方面对Seebeck系数的依赖关系.热电系数被认为是取决于夸克化学势和碰撞方面的介质。此外,还研究了磁化介质中的热电效应,并估算了相应的输运系数,如依赖于磁场的塞贝克系数和能斯特系数。热QCD介质相互作用的影响,通过有效模型和磁场上的介质的热电响应已被观察到的温度制度不是很远的转变温度更为突出。
英文摘要:
The thermoelectric behaviour of quark-gluon plasma has been studied within the framework of an effective kinetic theory by adopting a quasiparticle model to incorporate the thermal medium effects. The thermoelectric response of the medium has been quantified in terms of the Seebeck coefficient. The dependence of the collisional aspects of the QCD medium on the Seebeck coefficient has been estimated by utilizing relaxation time approximation and Bhatnagar-Gross-Krook collision kernels in the effective Boltzmann equation. The thermoelectric coefficient is seen to depend on the quark chemical potential and collision aspects of the medium. Besides, the thermoelectric effect has been explored in a magnetized medium and the respective transport coefficients, such as magnetic field-dependent Seebeck coefficient and Nernst coefficient, have been estimated. The impacts of hot QCD medium interactions incorporated through the effective model and the magnetic field on the thermoelectric responses of the medium have been observed to be more prominent in the temperature regimes not very far from the transition temperature.
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