磁化手征等离子体的圆偏振光子发射
Circularly polarized photon emission from magnetized chiral plasmas
AI总结：
本研究探讨磁化手征等离子体的圆偏振光子发射，发现夸克数与手征荷化学势通过影响电荷密度和手征荷密度，决定圆偏振占优性及发射与磁场的方向关系，提出偏振光子发射可表征重离子碰撞中的夸克-胶子等离子体。
摘要：
我们研究了具有非零夸克数和手征荷化学势的磁化夸克-胶子等离子体中圆偏振光子的发射。这些化学势对圆偏振光子的微分发射率有定性影响。夸克数化学势诱导的非零净电荷密度会增强一种圆偏振的整体发射，使其超过另一种；而非零手征荷密度则会在横向平面反射下引入发射的空间不对称性。电荷密度和手征荷密度的符号决定了哪种圆偏振整体占优，以及发射是优先与磁场同向还是反向。基于这些发现，我们提出偏振光子发射是表征重离子碰撞中产生的夸克-胶子等离子体的一个有前景的可观测量。
英文摘要：
We investigate the emission of circularly polarized photons from a magnetized quark-gluon plasma with nonzero quark-number and chiral charge chemical potentials. These chemical potentials qualitatively influence the differential emission rates of circularly polarized photons. A nonzero net electric charge density, induced by quark-number chemical potentials, enhances the overall emission of one circular polarization over the other, while a nonzero chiral charge density introduces a spatial asymmetry in the emission with respect to reflection in the transverse plane. The signs of the electrical and chiral charge densities determine which circular polarization dominates overall and whether the emission preferentially aligns with or opposes the magnetic field. Based on these findings, we propose that polarized photon emission is a promising observable for characterizing the quark-gluon plasma produced in heavy-ion collisions.
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