论文标题
手性费米斯等血浆中的磁螺旋力与不均匀物质相互作用
Magnetic helicity in plasma of chiral fermions electroweakly interacting with inhomogeneous matter
论文作者
论文摘要
我们研究了手性的fermions与具有非均匀密度和速度的背景物质相互作用，这取决于坐标。该系统的动力学大致通过查找浆果阶段来描述。得出了有效的动作和左右颗粒的动力学方程。在旋转物质的情况下，我们获得了对异常电流和阿德勒异常的校正。然后我们研究一些天体物理应用。假设旋转中子恒星中的手性失衡消失了，由于手性电子与背景中子的相互作用，我们获得了磁性螺旋度变化的速率。螺旋性变化的特征时间与某些脉冲星的磁性周期相吻合。
We study chiral fermions electroweakly interacting with a background matter having the nonuniform density and the velocity arbitrarily depending on coordinates. The dynamics of this system is described approximately by finding the Berry phase. The effective action and the kinetic equations for right and left particles are derived. In the case of a rotating matter, we obtain the correction to the anomalous electric current and to the Adler anomaly. Then we study some astrophysical applications. Assuming that the chiral imbalance in a rotating neutron star vanishes, we obtain the rate of the magnetic helicity change owing to the interaction of chiral electrons with background neutrons. The characteristic time of the helicity change turns out to coincide with the period of the magnetic cycle of some pulsars.
