论文标题
在豪华实验中研究粒子轨迹重建的量子算法
Studying quantum algorithms for particle track reconstruction in the LUXE experiment
论文作者
论文摘要
豪华实验（Laser UND XFEL实验）是在Desy Hamburg计划的新实验，该实验将研究强场前边界的量子电动力学（QED）。在此制度中，QED是非扰动的。这体现在从QED真空中创建物理电子词素对。 Luxe打算通过使用硅跟踪探测器来衡量这种前所未有的制度中的正电子生产率。遍历敏感探测器层的大量预期正电子会导致一个极具挑战性的组合问题，对于古典计算机来说，这在计算上可能很难成为计算机。本文提出了一项初步研究，以探讨量子计算机解决此问题并重建来自检测器能量沉积物的正电子轨迹的潜力。重建问题是根据二次不受约束的二进制优化提出的。最后，讨论了量子模拟的结果，并将其与传统的经典轨道重建算法进行了比较。
The LUXE experiment (LASER Und XFEL Experiment) is a new experiment in planning at DESY Hamburg, which will study Quantum Electrodynamics (QED) at the strong-field frontier. In this regime, QED is non-perturbative. This manifests itself in the creation of physical electron-positron pairs from the QED vacuum. LUXE intends to measure the positron production rate in this unprecedented regime by using, among others, a silicon tracking detector. The large number of expected positrons traversing the sensitive detector layers results in an extremely challenging combinatorial problem, which can become computationally very hard for classical computers. This paper presents a preliminary study to explore the potential of quantum computers to solve this problem and to reconstruct the positron trajectories from the detector energy deposits. The reconstruction problem is formulated in terms of a quadratic unconstrained binary optimisation. Finally, the results from the quantum simulations are discussed and compared with traditional classical track reconstruction algorithms.
