Lack of long-lived quantum coherence in the photosynthetic energy transfer

Hong-Guang Duan,Amy L Stevens,Emilie Wientjes,R J Dwayne Miller,Roberta Croce,Valentyn I Prokhorenko,Richard J Cogdell,Khuram Ashraf,Michael Thorwart

doi:10.1051/epjconf/201920509035

Abstract

We have studied the FMO, LHCII and PSII reaction center complex by electronic 2D spectroscopy. At ambient temperature the electronic coherences are too short lived to play any functional role in the natural energy transfer.

Highlights

In the initial steps of natural light-harvesting, pigment-protein complexes (PPCs) complete the light-energy transfer and charge separation with near unity quantum efficiency
We have studied the FMO, LHCII and PSII reaction center complex by electronic 2D spectroscopy
At ambient temperature the electronic coherences are too short lived to play any functional role in the natural energy transfer

Summary

Introduction

In the initial steps of natural light-harvesting, pigment-protein complexes (PPCs) complete the light-energy transfer and charge separation with near unity quantum efficiency. We have studied the FMO, LHCII and PSII reaction center complex by electronic 2D spectroscopy. At ambient temperature the electronic coherences are too short lived to play any functional role in the natural energy transfer.

Results

Conclusion