2025-02-19 カリフォルニア大学サンディエゴ校(UCSD)
＜関連情報＞
- https://today.ucsd.edu/story/observe-electrons-in-motion
- https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.134.073001
電子渦を用いた分子中の過渡的電子凝集の回折イメージング Diffractive Imaging of Transient Electronic Coherences in Molecules with Electron Vortices
Haowei Wu and Haiwang Yong
Physical Review Letters Published 19 February, 2025
DOI:https://doi.org/10.1103/PhysRevLett.134.073001
Abstract
Direct imaging of transient electronic coherences in molecules has been challenging, with the potential to control electron motions and influence reaction outcomes. We propose a novel time-resolved vortex electron diffraction technique to spatially resolve transient electronic coherences in isolated molecules. By analyzing helical dichroism diffraction signals, the contribution of electronic populations cancels out, isolating the purely electronic coherence signals. This allows direct monitoring of the time evolution and decoherence of transient electronic coherences in molecules.
