Simulating Magnetic Field-Driven Real-Time Quantum Dynamics Using London Nuclear-Electronic Orbital Approach.

Area of Science:

• Quantum Chemistry
• Chemical Physics
• Molecular Dynamics

Background:

• Controlling chemical processes using static magnetic fields is promising but often relies on classical approximations for nuclear dynamics.
• Understanding the quantum mechanical coupling of nuclear motion with magnetic fields is crucial for precise control.

Purpose of the Study:

• To develop a time-dependent quantum dynamics formalism for simulating magnetic field-driven molecular vibrations.
• To investigate the influence of magnetic field orientation and molecular symmetry on quantum dynamics.
• To establish a quantum mechanical framework for magnetic field-based vibrational control.

Main Methods:

• Development of a time-dependent quantum dynamics formalism utilizing London nuclear-electronic orbitals.
• Simulation of quantum dynamics for hydrogen cyanide (HCN) and formaldehyde (H2CO) molecules.
• Analysis of the interplay between magnetic field orientation and vibrational symmetry.

Main Results:

• Demonstrated the capability to simulate magnetic field-driven quantum dynamics.
• Identified field-induced couplings between vibrational modes.
• Observed symmetry-dependent effects influencing molecular vibrations.
• Provided detailed insights into magnetic field-vibrational interactions.

Conclusions:

• Established a quantum mechanical framework for understanding and manipulating vibrational dynamics with magnetic fields.
• Highlighted the importance of relative orientation and symmetry in magnetic field control.
• Opened new avenues for applications in spectroscopy, reaction dynamics, and quantum control.