3 papers
cond-mat.supr-con2026
Extended Mean-Field Theory for the 2D Hubbard Model in Degenerate Dilute Electron Gases: Fluctuations, Superconducting Dome, and Interaction Mechanisms in Strontium Titanate
Xing Yang, Xinyu Zhang, Xuchang Zhang
Strontium titanate () dome-shaped superconducting transition temperature as a function of chemical potential, consistent with STO experiments, and shows that…
q-fin.PM2025
Portfolio Optimization via Transfer Learning
Kexin Wang, Xiaomeng Zhang, Xinyu Zhang
Recognizing that asset markets generally exhibit shared informational characteristics, we develop a portfolio strategy based on transfer learning that leverages cross-market inform…
econ.EM2024
Asymptotic Properties of the Distributional Synthetic Controls
Lu Zhang, Xiaomeng Zhang, Xinyu Zhang
As an alternative to synthetic control, the distributional Synthetic Control (DSC) proposed by Gunsilius (2023) provides estimates for quantile treatment effect and thus enabling r…