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Non-Markovianity between Site Pairs in FMO Complex Using Discrete-Time Quantum Jump Model
Mousumi Kundu1, C M Chandrashekar2,3,4
1Indian Institute of Science Education and Research, Berhampur760010, India.
The Fenna-Mathews-Olson complex uses quantum effects for efficient energy transfer. This study quantifies non-Markovian memory effects, linking them to enhanced transport efficiency in green sulfur bacteria.
Area of Science:
- Quantum biology
- Biophysics
- Photosynthesis research
Background:
- The Fenna-Mathews-Olson (FMO) complex facilitates energy transfer in green sulfur bacteria.
- Its high efficiency is crucial for light-harvesting and reaction centers.
- Quantum phenomena like wavelike behavior and non-Markovian quantum jumps are proposed to enhance this efficiency.
Purpose of the Study:
- To investigate the role of quantum dynamics in FMO complex energy transfer.
- To simulate and quantify non-Markovian effects in the FMO system.
- To explore the connection between quantum coherence and transport efficiency.
Main Methods:
- Discrete quantum jump model simulation.
- Analysis of quantum-classical dynamics within the FMO complex.
- Quantification of non-Markovian memory effects in specific site pairs.
Main Results:
- Demonstrated and quantified higher non-Markovian memory effects in FMO complex.
- Identified specific site pairs exhibiting these effects.
- Found a correlation between non-Markovianity and enhanced energy transport.
Conclusions:
- Non-Markovian quantum jumps play a significant role in enhancing energy transport efficiency.
- Environmental and internal factors favoring faster transport also promote non-Markovianity.
- Understanding these quantum effects is key for future bio-inspired energy technologies.
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