论文标题
Sphaleron过渡速率和手性磁效应
Sphaleron Transition Rates and the Chiral Magnetic Effect
论文作者
论文摘要
手性磁效应是一种用于高能核碰撞的新型量子现象，但尚未观察到。由于Sphalerons，我们量化了轴向电荷松弛时间，该sphalerons进入了该效果的模拟中。与强耦合广告/CFT计算相比，SPHALER速率的弱耦合计算的外推会产生不同的放松时间。 AD/CFT松弛时间是通过数量级较大的两者中的较大的时间，但是弱耦合松弛时间可能并不可靠，因为它仅比显微镜热化时间略大。夸克质量的作用尚未准确评估。
The chiral magnetic effect is a novel quantum phenomenon proposed for high-energy nuclear collisions but which has yet to be observed. We quantify the axial charge relaxation time, due to sphalerons, which enters in simulations of this effect. An extrapolation of weak coupling calculations of the sphaleron rate yields rather different relaxation times than strong coupling AdS/CFT calculations. The AdS/CFT relaxation time is the larger one of the two by an order of magnitude, but the weak coupling relaxation time may not be reliable because it is only marginally bigger than the microscopic thermalization time. The role of quark masses has yet to be accurately assessed.
