期刊
PHYSICAL REVIEW LETTERS
卷 122, 期 9, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.122.091602
关键词
-
资金
- U.S. Department of Energy Office of Science [DE-SC0018134]
- Knut and Alice Wallenberg Foundation
The recently developed effective field theory of fluctuations around thermal equilibrium is used to compute late-time correlation functions of conserved densities. Specializing to systems with a single conservation law, we find that the diffusive pole is shifted in the presence of nonlinear hydrodynamic self-interactions, and that the density-density Green's function acquires a branch point halfway to the diffusive pole, at frequency omega = -(i/2)Dk(2). We discuss the relevance of diffusive fluctuations for strongly correlated transport in condensed matter and cold atomic systems.
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