论文标题
DEC-QED：一种基于通量的3D电动力建模方法，用于超导电路和材料
DEC-QED: A flux-based 3D electrodynamic modeling approach to superconducting circuits and materials
论文作者
论文摘要
建模包含约瑟夫森连接的超导电子电路的行为对于设计超导信息处理器和设备的设计至关重要。在本文中，我们介绍了DEC-QED，一种计算方法，用于建模在任意三维电磁环境中包含约瑟夫森连接的超导电子电路的电动力学。 DEC-QED捕获了BCS超导体中的非线性响应和诱导的电流，并准确捕获了现象，例如Meissner效应，通量量化和Josephson效应。使用基于离散外部演算（DEC）的空间粗粒剂公式，DEC-QED可以准确模拟超导体中的瞬时和长时间动力学。整个电动力问题在量规不变的通量和电荷方面的表达使所得的经典场理论适用于第二个量化。
Modeling the behavior of superconducting electronic circuits containing Josephson junctions is crucial for the design of superconducting information processors and devices. In this paper, we introduce DEC-QED, a computational approach for modeling the electrodynamics of superconducting electronic circuits containing Josephson junctions in arbitrary three-dimensional electromagnetic environments. DEC-QED captures the non-linear response and induced currents in BCS superconductors and accurately captures phenomena such as the Meissner effect, flux quantization and Josephson effects. Using a spatial coarse-graining formulation based on Discrete Exterior Calculus (DEC), DEC-QED can accurately simulate transient and long-time dynamics in superconductors. The expression of the entire electrodynamic problem in terms of the gauge-invariant flux field and charges makes the resulting classical field theory suitable for second quantization.
