论文标题
量子计算机中的中等感应喷气
Medium induced jet broadening in a quantum computer
论文作者
论文摘要
QCD喷气机提供了最好的途径之一，以提取有关超级相对论重离子碰撞后产生的夸克 - 胶原等离子体的信息。喷气机的结构是通过多粒子量子干扰来确定的，难以使用扰动方法来解决。当喷气机在QCD介质中演变时，将修改干扰模式，从而增加了另一层复杂性。通过利用量子技术的最新发展，可以通过直接量子仿真的射流进化来更好地理解这种影响。在这项工作中，我们为此类模拟介绍了一个先驱。基于轻型汉密尔顿形式主义，我们构建了一个数字量子电路，该电路在存在随机色背景的情况下跟踪单个硬探针的演变。就喷气淬灭参数$ \ hat Q $而言，使用理想量子计算机的经典模拟器获得的结果与已知的分析结果相符。通过这项研究，我们希望为使用量子计算机的未来中等喷气机构研究提供基线。
QCD jets provide one of the best avenues to extract information about the quark-gluon plasma produced in the aftermath of ultra relativistic heavy ions collisions. The structure of jets is determined by multiparticle quantum interference hard to tackle using perturbative methods. When jets evolve in a QCD medium this interference pattern is modified, adding another layer of complexity. By taking advantage of the recent developments in quantum technologies, such effects might be better understood via direct quantum simulation of jet evolution. In this work, we introduce a precursor to such simulations. Based on the light-front Hamiltonian formalism, we construct a digital quantum circuit that tracks the evolution of a single hard probe in the presence of a stochastic color background. In terms of the jet quenching parameter $\hat q$, the results obtained using classical simulators of ideal quantum computers agree with known analytical results. With this study, we hope to provide a baseline for future in-medium jet physics studies using quantum computers.
