Photon-mediated energy transfer between molecules and atoms in a cavity: A numerical study

Area of Science:

• Physical Chemistry
• Quantum Optics
• Materials Science

Background:

• Molecular energy transfer is vital for physicochemical processes.
• Traditional resonance energy transfer is limited by short distances (∼10 nm).
• Cavity polaritons offer a potential solution to overcome distance limitations in energy transfer.

Purpose of the Study:

• To investigate long-distance molecular energy transfer using cavity polaritons.
• To explore the role of a two-level atom (TLA) in manipulating energy transfer.
• To understand the influence of molecular kinetic energy on energy transfer efficiency.

Main Methods:

• Numerical simulation of a system involving a two-level atom (TLA) and a lithium fluoride (LiF) molecule within an optical cavity.
• Hybridization of molecular and photonic states to form cavity polaritons.
• Analysis of potential energy surfaces and energy transfer dynamics.

Main Results:

• The TLA creates a potential well, mimicking the LiF potential energy surface and acting as an energy reservoir.
• Energy transfer efficiency demonstrates a dependence on the molecular nuclear kinetic energy.
• Increased nuclear kinetic energy leads to enhanced energy transfer.

Conclusions:

• Cavity polaritons provide a viable mechanism for long-range molecular energy transfer.
• Intentional design of TLAs can effectively control and manipulate energy transfer processes within cavities.
• This approach offers a novel method for controlling chemical reactions via energy transfer manipulation.