dynamical mean-field theory 1green's functions 1machine learning 1moment representation 1spectral functions 1
From the 1 of 2 linked papers with an AI index.
2 papers
physics.comp-ph2026
Compact and Stable Representation of Real-Frequency Spectral Functions for Machine Learning
Xinyang Dong, Ido Zemach, Lei Zhang +2
The paper proposes a compact moment-based representation for real-frequency Green's functions and related quantities that is stable for machine‑learning tasks, and demonstrates its…
cond-mat.str-el2025
Multi-orbital dynamical mean-field theory with a complex-time solver
Yang Yu, Lei Zhang, Emanuel Gull +2
We present the combination of a complex-time tensor-network impurity solver with an analytic continuation scheme based on exponential fitting as an efficient framework for single a…