Center for Integrated Computation and Analysis of Reconnection and Turbulence, University of New Hampshire, Durham, New Hampshire 03824, USA.
Phys Rev Lett. 2011 May 27;106(21):215003. doi: 10.1103/PhysRevLett.106.215003.
Recent experiments have observed magnetic reconnection in high-energy-density, laser-produced plasma bubbles, with reconnection rates observed to be much higher than can be explained by classical theory. Based on fully kinetic particle simulations we find that fast reconnection in these strongly driven systems can be explained by magnetic flux pileup at the shoulder of the current sheet and subsequent fast reconnection via two-fluid, collisionless mechanisms. In the strong drive regime with two-fluid effects, we find that the ultimate reconnection time is insensitive to the nominal system Alfvén time.
最近的实验观察到了高能密度、激光产生的等离子体泡中的磁重联，观测到的重联速度远高于经典理论所能解释的速度。基于全动力学粒子模拟，我们发现这些强烈驱动系统中的快速重联可以通过电流片肩部的磁通量堆积和随后的双流体、无碰撞机制来解释。在具有双流体效应的强驱动条件下，我们发现最终的重联时间对名义系统阿尔芬时间不敏感。
