论文标题
（3+1）中的晶格量子电动力学在有限密度下使用张量
Lattice Quantum Electrodynamics in (3+1)-dimensions at finite density with Tensor Networks
论文作者
论文摘要
规格理论对于我们对物质及其相互作用的基本成分的理解至关重要。然而，仍在争论其相图的完整表征以及对非扰动效应的全面理解，尤其是在有限的电荷密度下，主要是由于影响蒙特卡洛数值模拟的标志问题。 Here, we report the Tensor Network simulation of a three dimensional lattice gauge theory in the Hamiltonian formulation including dynamical matter: Using this sign-problem-free method, we simulate the ground states of a compact Quantum Electrodynamics at zero and finite charge densities, and address fundamental questions such as the characterization of collective phases of the model, the presence of a confining phase at large gauge coupling, and the study of charge-screening效果。
Gauge theories are of paramount importance in our understanding of fundamental constituents of matter and their interactions. However, the complete characterization of their phase diagrams and the full understanding of non-perturbative effects are still debated, especially at finite charge density, mostly due to the sign-problem affecting Monte Carlo numerical simulations. Here, we report the Tensor Network simulation of a three dimensional lattice gauge theory in the Hamiltonian formulation including dynamical matter: Using this sign-problem-free method, we simulate the ground states of a compact Quantum Electrodynamics at zero and finite charge densities, and address fundamental questions such as the characterization of collective phases of the model, the presence of a confining phase at large gauge coupling, and the study of charge-screening effects.
