论文标题
部分可观测时空混沌系统的无模型预测
Rigorous bounds on transport from causality
论文作者
论文摘要
我们使用因果关系来得出许多对分散关系的简单和普遍限制，这些约束描述了相对论量子场理论中智障两点函数的奇异性的位置。我们证明，所有因果耗散分散关系都有有限的收敛半径。然后，我们以此半径的单位以所有传输系数给出了双面边界，包括扩散率的上限。
We use causality to derive a number of simple and universal constraints on dispersion relations, which describe the location of singularities of retarded two-point functions in relativistic quantum field theories. We prove that all causal dissipative dispersion relations have a finite radius of convergence. We then give two-sided bounds on all transport coefficients in units of this radius, including an upper bound on diffusivity.
