论文标题
手性血浆不稳定性和来自核collapse超新星的非平衡左手中微子的反向级联反应
Chiral plasma instability and inverse cascade from nonequilibrium left-handed neutrinos in core-collapse supernovae
论文作者
论文摘要
我们表明，即使没有对核心 - 崩溃的超新星中电子的手性不平衡，左手中微子在物质部门的平衡中的反射会引起与磁场成比例的电流。我们基于最近配制的中微子的手性辐射传输理论得出了这种作用的运输系数。这种手性电流通过所谓的手性血浆不稳定性产生强磁场，这可以为磁铁的强且稳定的磁场提供新的机制。我们还研究了包括该电流在内的磁流失动力学中磁能反级联反向级联反向的物理起源。我们的结果表明，结合中微子的手性作用将大大改变超新星的流体动力发展，这也可能与爆炸动力学有关。
We show that the backreaction of left-handed neutrinos out of equilibrium on the matter sector induces an electric current proportional to a magnetic field even without a chiral imbalance for electrons in core-collapse supernovae. We derive the transport coefficient of this effect based on the recently formulated chiral radiation transport theory for neutrinos. This chiral electric current generates a strong magnetic field via the so-called chiral plasma instability, which could provide a new mechanism for the strong and stable magnetic field of magnetars. We also numerically study the physical origin of the inverse cascade of the magnetic energy in the magnetohydrodynamics including this current. Our results indicate that incorporating the chiral effects of neutrinos would drastically modify the hydrodynamic evolutions of supernovae, which may also be relevant to the explosion dynamics.
