Xiao Jiang 江筱
Ph.D. in Condensed Matter Physics
Exploring many-body computational methods — tensor cross interpolation (TCI) and first-principles calculations — to investigate electron-phonon coupling and polaron physics in correlated materials.
Research Philosophy
My research lies at the intersection of condensed matter theory and computational materials science, with a core focus on the fundamental physics of electron-phonon interactions and polaron quasiparticles.
My current research goal is to implement and apply Tensor Cross Interpolation (TCI) algorithms for evaluating polaron Feynman diagrams in real materials — bridging the gap between model Hamiltonians and first-principles systems. This effort is still at an early stage. In parallel, I build open-source scientific tools to accelerate first-principles workflows in the materials science community.
Research Domains
Polaron Many-Body Theory
Applying Quantics Tensor Cross Interpolation (QTCI) — a tensor decomposition framework pioneered by recent advances in the community — to evaluate Feynman diagrams for multi-orbital polaron systems in correlated electron-phonon models.
Electron-Phonon Coupling
Studying how crystal symmetry influences polaron type and transport anisotropy in transition-metal oxides through first-principles DFT calculations and electron-phonon coupling analysis.
Scientific Software
Building open-source tools for computational physics, including PolaronTCISolver — a C++ library implementing TCI algorithms for polaron Feynman diagram evaluation (repository currently private, under active development) — and CrystalCanvas, a desktop application for crystal structure modeling and DFT/MD file preparation.
Recent
Publications
Selected recent publications and research highlights.
First-Principles Study of Polarons in Multiple Crystal Phases of Bismuth Vanadate
Xiao Jiang, Xu Cheng, Zhanqi Liu, Liyun Ding, Weihua Han*. J. Phys. Chem. C 129, 19190–19198.
First AuthorUnderstanding Polaron Dynamics in CeO₂ for Advanced Catalytic Material Design
Xiao Jiang, Xu Cheng, Zhanqi Liu, Liyun Ding, Weihua Han*. Phys. Chem. Chem. Phys. 27, 21673–21682.
First AuthorCatalytic Effect of Gray Gallium Nitride for Hydrogen Peroxide Generation
Zhanqi Liu, Xiao Jiang, et al. ACS Nano 19, 33361–33371.
Co-Author