标题： 具有时变磁场的夸克-胶子等离子体的汤姆森热电系数 显示英文标题

标题： Thermoelectric Thomson coefficient of quark-gluon plasma in the presence of a time-varying magnetic field

摘要： 重离子碰撞实验，如大型强子对撞机和相对论重离子对撞机，提供了一个独特平台来研究夸克-胶子等离子体（QGP）的几个关键性质，这是一种强相互作用物质的去禁闭态。夸克作为带电粒子，在温度梯度下可以在介质中感应出电流。因此，QGP介质可以表现得像热电介质。热电系数，如赛贝克系数和汤姆森系数，可以帮助我们理解介质复杂的输运现象。在周边碰撞中，由于旁观质子产生的强烈、瞬时且时间依赖性的磁场显著影响了QGP介质的热电特性，从而影响电荷和热量的传输。本文使用准粒子模型计算了QGP中的汤姆森系数。在QGP中，描述存在温度梯度时载流介质连续加热或冷却的汤姆森效应尚未得到充分探索。与之相反，关联温度梯度与感应电场的赛贝克效应已经在文献中得到了广泛研究。首次，我们计算了磁性汤姆森系数和横向汤姆森系数。我们研究了它们随温度、净重子化学势、质心能量以及具有不同衰减参数的时间依赖性磁场的变化。横向汤姆森效应源于在磁场存在下的能斯脱效应。我们的结果为重离子碰撞背景下QGP介质的高阶热电输运性质提供了新的见解。 显示英文摘要

摘要： Heavy-ion collision experiments such as the Large Hadron Collider and the Relativistic Heavy Ion Collider offer a unique platform to study several key properties of the quark-gluon plasma (QGP), a deconfined state of strongly interacting matter. Quarks, being the electrically charged particles, can induce an electric current in the medium in response to the temperature gradients. Hence, the QGP medium can behave like a thermoelectric medium. The thermoelectric coefficients, such as the Seebeck and Thomson coefficients, can help us to understand the intricate transport phenomenon of the medium. In peripheral collisions, the intense, transient, and time-dependent magnetic field created due to spectator protons significantly influences the thermoelectric properties of the QGP medium, affecting the charge and heat transport. This work uses the quasi-particle model to calculate the Thomson coefficient in QGP. The Thomson effect, describing the continuous heating or cooling of the charge-carrying medium in the presence of temperature gradients, remains largely unexplored in QGP. The Seebeck effect, which relates temperature gradients to induced electric fields, has been widely studied in the literature. For the first time, we calculate the magneto-Thomson and transverse Thomson coefficients. We have studied their dependence on temperature, baryon chemical potential, center of mass energy, and time-dependent magnetic field with different decay parameters. The transverse Thomson effect originates due to the presence of the Nernst effect in the presence of a magnetic field. Our results provide new insights into the higher-order thermoelectric transport properties of the QGP medium in the context of heavy-ion collisions.