2 papers
physics.chem-ph2026
Spin-Consistency Constraints in Noncollinear Tensor TDA
Wenxian Qin, Tai Wang, Yue Yu +3
TDDFT for open-shell systems, whether spin-conserving or spin-flip, has long suffered from spin contamination. This problem arises because the single-excitation space built upon a…
physics.chem-ph2025
Noncollinear Spin-Flip TDDFT for Potential Energy Surface Crossings: Conical Intersections and Spin Crossings
Xiaoyu Zhang, Tai Wang, Yi Qin Gao +1
We recently proposed a scheme to generalize collinear functionals to the noncollinear regime, termed the multicollinear approach. The resulting noncollinear functionals preserve sp…