Author

Wei-Bin Chu

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Preprint Sep 2026

Asymptotic Pseudospectra in Dissipative Floquet Quantum Systems: Geometric Structures and Observable Dynamics

In periodically driven open quantum systems, nonnormality renders the Floquet spectrum insufficient as the system approaches the thermodynamic limit, so that pseudospectra are needed to characterize the dynamics accurately. While conventional approaches mainly focus on the local dynamics of isolated pseudospectra, thei...

Yun-Cheng Xie, Hao-Zhe Shi, Zhuo-Cheng Ma et al. · 0 citations

Jul 2026

Nonadiabatic molecular dynamics on real-time excited-state surfaces via machine learning Hamiltonians

On-the-fly N${^2}$AMD (Neural network NAMD), a machine learning framework that makes on-the-fly NAMD in solids a reality, by employing an equivariant neural network to predict the system Hamiltonian, delivers excited-state energies, forces, and non-adiabatic coupling vectors at a fraction of the cost of ab initio calcu...

Changwei Zhang, Yang Zhong, Zhi-Guo Tao et al. · Physical Review Letters · 1 citation