论文标题
轻右手相关器的量子模拟
Quantum Simulation of Light-Front Parton Correlators
论文作者
论文摘要
高能量围墙的物理学取决于对不同非扰动Parton相关因子（例如Parton分布函数）的知识，这些知识编码了通用强子结构的信息，因此是该碰撞中基础过程的任何因素化定理的主要构件。这些功能是根据规格不变的轻正运算符给出的，它们在空间和实时都是非本地的，因此由于众所周知的符号问题而被标准晶格技术棘手。在本文中，我们提出了一种量子算法来对这些类型的相关器进行量子模拟，并通过考虑时空Wilson循环来说明它。我们讨论了量子算法的实现，这些量子门在实际量子技术（例如冷原子设置，被困离子或超导电路）中可访问的量子门。
The physics of high-energy colliders relies on the knowledge of different non-perturbative parton correlators, such as parton distribution functions, that encode the information on universal hadron structure and are thus the main building blocks of any factorization theorem of the underlying process in such collision. These functions are given in terms of gauge-invariant light-front operators, they are non-local in both space and real time, and are thus intractable by standard lattice techniques due to the well-known sign problem. In this paper, we propose a quantum algorithm to perform a quantum simulation of these type of correlators, and illustrate it by considering a space-time Wilson loop. We discuss the implementation of the quantum algorithm in terms of quantum gates that are accessible within actual quantum technologies such as cold atoms setups, trapped ions or superconducting circuits.
