Lack of Excitation Energy Transfer from the Bacteriochlorophyll Soret Band to Carotenoids in Photosynthetic Complexes of Purple Bacteria

2021 ◽  
Author(s):  
Andrei Razjivin ◽  
Jan Götze ◽  
Evgeny Lukashev ◽  
Vladimir Kozlovsky ◽  
Aleksandr Ashikhmin ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Excitation Energy ◽  
Purple Bacteria ◽  
Excitation Energy Transfer ◽  
Soret Band ◽  
Photosynthetic Complexes

Computational elucidations on the role of vibrations in energy transfer processes of photosynthetic complexes

2021 ◽  
Author(s):  
Kwang Hyun Cho ◽  
Young Min Rhee
Keyword(s):  
Energy Transfer ◽  
Excitation Energy ◽  
Excitation Energy Transfer ◽  
Transfer Processes ◽  
Simulation Techniques ◽  
Photosynthetic Complexes

Coupling between pigment excitations and nuclear movements in photosynthetic complexes is known to modulate the excitation energy transfer (EET) efficiencies. Toward providing microscopic information, researchers often apply simulation techniques and...

THEORY OF EXCITATION-ENERGY TRANSFER PROCESSES INVOLVING OPTICALLY FORBIDDEN EXCITON STATES IN ANTENNA SYSTEMS OF PHOTOSYNTHESIS

2001 ◽  
Vol 15 (28n30) ◽  
pp. 3637-3640
Author(s):  
KOICHIRO MUKAI ◽  
SHUJI ABE ◽  
HITOSHI SUMI
Keyword(s):  
Energy Transfer ◽  
Excitation Energy ◽  
Reaction Center ◽  
High Efficiency ◽  
Purple Bacteria ◽  
Excitation Energy Transfer ◽  
Light Harvesting Complex ◽  
Transfer Processes ◽  
Photosynthetic Purple Bacteria ◽  
Antenna Systems

The rate of excitation-energy transfer (EET) within the light-harvesting complex (LH) and from LH to the reaction center (RC) of photosynthetic purple bacteria is calculated, based on a formula for EET between molecular aggregates. We show that optically forbidden exciton states participate in EET processes through mulitpole EET interactions with the help of disorder. In the antenna systems of photosynthesis, high efficiency of energy transfer is implemented by these EET processes involving optically forbidden exciton states.

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