手性磁性螺旋
Chiral Magnetic Spiral
摘要：
我们认为，一个非常强的磁场的存在下，在手性破碎相诱导不均匀的期望值，螺旋性质沿磁场轴，为电流的电荷和手性，当有有限的重子密度或左右手征之间的不平衡。这种“手征磁螺旋”是沿着磁场的方向传输（i）电荷（在有限手征下）和（ii）手征（在有限重子密度下）的电流的无间隙激发。在这两种情况下，它也诱导在横向振荡电流的电荷和手性。在重离子碰撞中，手征磁螺旋可能对最近在RHIC上观察到的面外和面内动态电荷涨落都有贡献。
英文摘要：
We argue that the presence of a very strong magnetic field in the chirally broken phase induces inhomogeneous expectation values, of a spiral nature along the magnetic field axis, for the currents of charge and chirality, when there is finite baryon density or an imbalance between left and right chiralities. This "chiral magnetic spiral" is a gapless excitation transporting the currents of (i) charge (at finite chirality), and (ii) chirality (at finite baryon density) along the direction of the magnetic field. In both cases it also induces in the transverse directions oscillating currents of charge and chirality. In heavy ion collisions, the chiral magnetic spiral possibly provides contributions both to the out-of-plane and the in-plane dynamical charge fluctuations recently observed at RHIC.
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