QED Theory for Controlling the Molecule-Cavity Interaction: From Solvable Analytical Models to Realistic Ones.

Area of Science:

• Quantum Chemistry
• Chemical Physics
• Materials Science

Background:

• Cavity quantum chemistry is an emerging field exploring chemical systems within cavities.
• A significant gap exists between theoretical predictions and experimental results in this area.
• Controlling molecular reactions via cavity interactions is a key research objective.

Purpose of the Study:

• To bridge the gap between theory and experiment in cavity chemistry.
• To analyze analytical and realistic models for molecular reactions in cavities.
• To investigate methods for controlling molecule-cavity coupling and chemical reactions.

Main Methods:

• Analysis of solvable analytical models for reactions in cavities.
• Development of realistic models for multiple molecules in single-mode and multi-mode cavities.
• Investigation of strategies to tune molecule-cavity coupling strength.

Main Results:

• Demonstrated control over chemical reaction strengths via coupling.
• Provided methods for parameterizing model Hamiltonians for specific molecular systems.
• Showcased the ability to induce forbidden isomerizations within cavities.

Conclusions:

• The study provides a theoretical framework for simulating molecular systems in polariton cavities.
• The findings facilitate the development of ab initio computational methods.
• Controlling molecular behavior and reactions through cavity engineering is feasible.