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arXiv · 1711.08702

Effective Resistivity in Collisionless Magnetic Reconnection

Zhi-Wei Ma·Tong Chen
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Abstract

Magnetic reconnection (MR) in collisionless plasma is often attributed to the off-diagonal electron Reynolds stress, which can give rise to a large induction electric field in the reconnection region. However, in magneto-hydro-dynamics (MHD) simulations of MR, it is difficult to implement the full Reynolds stress, which is kinetic in nature. In this paper, we propose a theoretical model of effective resistivity from the first principle of particle dynamics. The derived theoretical formulation of the effective resistivity is verified by full particle-in-cell (PIC) simulations, and the corresponding physics is discussed.

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Zhi-Wei Ma, Tong Chen. 2017-11-23. Effective Resistivity in Collisionless Magnetic Reconnection. https://arxiv.org/abs/1711.08702

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