Chaos-induced resistivity in collisionless magnetic reconnection

被引：22

作者：

Numata, R ^{[1
]}

Yoshida, Z ^{[1
]}

机构：

[1] Univ Tokyo, Grad Sch Frontier Sci, Tokyo 1130033, Japan

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.88.045003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetic null points act as scattering centers where particles describe chaotic orbits and the mixing effect increases the kinetic entropy. In an open system where convection of particles into/from the chaos region exists, the saturation of the entropy can be avoided, and continuous dissipation is achieved. The chaos-induced collisionless resistivity of ions enables fast magnetic reconnection. By matching the microscopic (kinetic process) and the macroscopic parameters of reconnection, we obtain a self-consistent model of the diffusion region.

引用

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