蝴蝶拖着喷气机：论全息QCD的混沌性质
Butterflies dragging the jets: on the chaotic nature of holographic QCD
摘要：
在这封信中，我们将全息对应中的两个主题--量子混沌和夸克-胶子等离子体（QGP）结合在一起。我们建立了一个载流子在热介质（例如QGP中的夸克）中以恒定速度运动所受到的拖曳力的第一相对论修正是由蝶形速度固定的。此外，我们表明，这一结果是强大的弦修正和各向异性。对于喷流猝灭参数，我们发现它与沿动量加宽方向的蝶形速度和温度有关。这为从相当简单的观测量实验重建夸克-胶子等离子体和其他强耦合系统的蝴蝶速度开辟了一条道路。
英文摘要：
In this Letter, we bring together two topics in the holographic correspondence - quantum chaos and quark-gluon plasma (QGP). We establish that the first relativistic correction to drag force experienced by a charge carrier moving through a thermal medium (for example, a quark in QGP) at a constant velocity is fixed by the butterfly velocity. Moreover, we show that this result is robust against stringy corrections and anisotropy. For the jet quenching parameter, we find that it is related to the butterfly velocity along the momentum broadening direction and temperature in the spirit of the ``Planckian bound''. This opens a way to the reconstruction of butterfly velocity of quark-gluon plasma and other strongly-coupled systems experimentally from rather simple observables.
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