论文标题
用颗粒状的核结构碰撞局部，块状全息冲击
Colliding localized, lumpy holographic shocks with a granular nuclear structure
论文作者
论文摘要
我们采用了一种最新的简单技术，该技术可以加快全息图中局部碰撞的计算，以通过仪表/重力双重性来研究重离子碰撞的更现实模型。最初的数据考虑了实际重离子的肿块核结构，而弹丸的纵横比模仿了RHIC碰撞过程中核的Lorentz收缩。在碰撞期间夸克gluon等离子体的中央区域的流体动物化时间，我们发现涡度三个矢量的绝对值中的大多数被沉积在远离等离子体的流体动物的部分。只有对流体动物区域中热涡度的相对论校正是不可忽略的。我们比较了在这项工作中确定的碰撞后的横向流与先前的结果，而没有颗粒状初始条件，并确定血浆流体动物的亚区域的适当能量密度和流体速度。
We apply a recent and simple technique which speeds up the calculation of localized collisions in holography to study more realistic models of heavy ion collisions via the gauge/gravity duality. The initial data takes into account the lumpy nuclear structure of real heavy ions and the projectiles' aspect ratio mimics the Lorentz contraction of nuclei during RHIC collisions. At the hydrodynamization time of the central region of the quark gluon plasma developed during the collision, we find that most of the vorticity three vector's absolute value is deposited far away from the hydrodynamized part of the plasma. Only the relativistic corrections to the thermal vorticity in the hydrodynamized region are non-negligible. We compare the transverse flow after the collision determined in this work with previous results, without granular initial conditions and determine the proper energy density and fluid velocity in a hydrodynamized subregion of the plasma.
