Ph.D. in Condensed Matter Physics
Investigating electron–phonon interactions and polaron quasiparticles in correlated materials using first-principles calculations and Tensor Cross Interpolation (TCI) for high-dimensional diagrammatic integration.
Xiao Jiang (江筱)
Ph.D. · Lanzhou University
My research lies at the interface of condensed matter theory and scientific software engineering, focusing on the fundamental physics of electron–phonon interactions and polaron transport.
My current focus is developing Tensor Cross Interpolation (TCI) methods for evaluating polaron Feynman diagrams in real materials — bridging model Hamiltonians with first-principles systems. I have built PolaronTCISolver (C++23) as the numerical engine of this effort, and CrystalCanvas (WebGPU/C++) for crystal modeling and DFT workflow preparation.
Applying Quantics Tensor Cross Interpolation (QTCI) to evaluate high-dimensional electron–phonon Feynman diagrams beyond Migdal approximation for multi-orbital polaron systems.
Investigating how crystal symmetry modulates polaron type, transport anisotropy, and dielectric screening in transition-metal oxides (BiVO₄, CeO₂) via DFT and DFPT.
Building high-performance physics software: PolaronTCISolver (C++23 TCI engine with 2,000,000× compression) and CrystalCanvas (GPU crystal modeling).
Xiao Jiang, Xu Cheng, Zhanqi Liu, Liyun Ding, Weihua Han*. The Journal of Physical Chemistry C 129.42 (2025): 19190–19198.
Xiao Jiang, Xu Cheng, Zhanqi Liu, Liyun Ding, Weihua Han*. Physical Chemistry Chemical Physics 27 (2025): 21673–21682.
Zhanqi Liu, Xiao Jiang, Xu Cheng, Yue Pei, Xinkong Wei, Weihua Han*, Wei Tang, Zhong Lin Wang*. ACS Nano 19.37 (2025): 33361–33371.