Optimization of exciton trapping in energy transfer processes

Area of Science:

• Quantum physics
• Chemical physics
• Computational science

Background:

• Efficient energy transfer is crucial for quantum systems like light harvesting.
• Understanding the interplay between coherence and dissipation is key to optimizing transfer efficiency.

Purpose of the Study:

• To establish optimal conditions for maximal energy transfer efficiency in multilevel systems.
• To develop a systematic mapping procedure for interpreting analytical solutions with intuitive kinetic networks.
• To provide insights into controlling quantum phenomena for practical applications.

Main Methods:

• Analytical solutions for multilevel systems.
• A systematic mapping procedure to define effective hopping rates and nonlocal kinetic couplings.
• Analysis of dissipative effects and quantum phase modulation.

Main Results:

• Maximal energy transfer efficiency achieved by optimizing system-environment coupling.
• Rigorous separation of thermal hopping and coherent transfer.
• Identification of mechanisms for optimizing efficiency, including balancing localization/delocalization and controlling quantum phase.

Conclusions:

• The derived physics provides insights into light harvesting systems.
• The developed approaches are applicable to large-scale quantum computation.
• Optimal control of environmental dissipation and quantum coherence is essential for efficient energy transfer.