论文标题
来自湍流颜色场的自旋对齐
Spin alignment from turbulent color fields
论文作者
论文摘要
我们研究了gluons在旋转传输中的重要作用，但与Quark Gluon等离子体中的局部平均违规有关。我们将新开发的量子动力学理论扩展到相对论费物的情况下，再加上非亚伯利亚染色体电磁场，并采用这种形式主义来研究在近乎平衡的Quark Gluon等离子体中动态生成的颜色场下夸克的旋转极化。发现自旋极化可以由颜色场的奇偶元相关因子诱导，这可能在弱耦合时占主导地位。我们的结果为在高能核碰撞中测量的向量介子的旋转对准提供了可能的解释，并暗示了与局部违规的联系。
We study the important, yet widely overlooked, role of gluons for spin transport with a connection to local parity violation in quark gluon plasmas. We extend the newly developed quantum kinetic theory for relativistic fermions to the case coupled with non-Abelian chromo-electromagnetic fields and employ this formalism to investigate the spin polarization of quarks under dynamically generated color fields in near-equilibrium quark gluon plasmas. It is found that the spin polarization could be induced by parity-odd correlators of color fields, which may dominate over collisional effects at weak coupling. Our result provides with a possible explanation for the spin alignment of vector mesons measured in high-energy nuclear collisions and alludes to the connection with local parity violation.
