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Updated: Jun 29, 2026

Direct Imaging of Laser-driven Ultrafast Molecular Rotation
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Published on: February 4, 2017

Quantum Trajectory Mean-Field Method Extended for Simulating Laser Field-Induced Nonadiabatic Dynamics.

Bin-Bin Xie1, Chun-Xia Cai1, Bo-Wen Yin2

  • 1Hangzhou Institute of Advanced Studies, Zhejiang Normal University, 1108 Gengwen Road, Hangzhou 311231, Zhejiang, P. R. China.

The Journal of Physical Chemistry Letters
|June 28, 2026
PubMed
Summary

Scientists developed a new laser-field method (QTMF-LF) to accurately simulate molecular dynamics. This quantum trajectory mean-field approach reliably captures electron-nuclear motion for laser-controlled chemical reactions.

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Area of Science:

  • Chemical Physics
  • Quantum Dynamics
  • Laser Chemistry

Background:

  • Precise control of chemical reactions with tailored laser pulses is a key area in chemistry.
  • Mixed quantum-classical (MQC) methods face challenges in accurately describing laser-induced molecular dynamics.

Purpose of the Study:

  • To extend the quantum trajectory mean-field (QTMF) method to simulate laser-driven electron-nuclear dynamics.
  • To develop a reliable computational method for laser-controlled chemical reactions.

Main Methods:

  • The quantum trajectory mean-field method (QTMF) was extended to handle laser fields (QTMF-LF).
  • QTMF-LF self-consistently treats coherence, decoherence, and nuclear motion feedback.
  • Simulations were performed on the LiH molecule using UV and IR laser pulses.

Main Results:

  • The extended QTMF-LF method successfully simulated electron-nuclear dynamics for LiH under laser influence.
  • Time evolution of electronic population transfer and molecular dipole moment variations were accurately captured.
  • Results closely matched those from grid-based quantum dynamics simulations.

Conclusions:

  • The extended QTMF-LF method provides a reliable approach for simulating laser-controlled molecular dynamics.
  • This method advances the capability to model and predict outcomes of laser-driven chemical reactions.
  • QTMF-LF offers a promising tool for exploring quantum dynamics in laser-controlled chemistry.