2024/03/02 by Xuezhi Bian, Bian, Xuezhi, Joseph E. Subotnik +1
Chemistry · Physics and Astronomy · #Chemical Physics (physics.chem-ph) #FOS: Physical sciences #Optics (physics.optics) #Photochemistry and Electron Transfer Studies #Quantum optics and atomic interactions #Spectroscopy and Quantum Chemical Studies
paper · pdf · doi:10.48550/arxiv.2403.01284
openalex publication_date 2024/03/02 · openalex created_date 2024/03/06 · openalex updated_date 2026/08/01
We demonstrate (both analytically and numerically) total angular momentum conservation for a molecular system subject to circularly polarized light (CPL) field moving along a single Born-Oppenheimer surface, where all of the angular momentum transfer is embodied in a Berry force. Moreover, we demonstrate that the model Hamiltonian proposed in [J. Chem. Phys. 150, 124101 (2019)] in fact corresponds physically to a homonuclear diatomic in a CPL field. Our results not only reveal an interesting microscopic mechanism for angular momentum transfer between a molecule and a radiation field, but they also provide new insight into the nature of novel semiclassical non-adiabatic dynamics methods that conserve the total angular momentum (including, e.g., phase-space surface-hopping methods).