标题： Meron-簇算法用于量子链接模型 显示英文标题

标题： Meron-Cluster Algorithms for Quantum Link Models

摘要： 目前最先进的模拟费米子与规范场耦合的算法通常依赖于对费米子自由度进行积分。 尽管在零化学势下模拟QCD方面取得了成功，但在有限密度下，这些方法受到符号问题的阻碍。 我们讨论了在哈密顿量形式下的格点规范理论的模拟，并提出了一种广义的梅伦-簇算法，用于模拟自旋$1/2$的$U\left(1\right)$量子链接模型。 这使得可以直接研究与当前量子模拟器相关的模型，并且是构建更复杂规范理论的新高效算法的有前景的第一步。 显示英文摘要

摘要： State-of-the-art algorithms for simulating fermions coupled to gauge fields often rely on integrating fermion degrees of freedom. While successful in simulating QCD at zero chemical potential, at finite density these approaches are hindered by the sign problem. We discuss the simulation of lattice gauge theories in the Hamiltonian formalism and present a generalized meron-cluster algorithm for the simulation of the $U\left(1\right)$ Quantum Link Model for spin $1/2$. This enables the study of models directly relevant to current quantum simulators and is a promising first step toward constructing new efficient algorithms for more complicated gauge theories.