Realistic Quantum Control of Energy Transfer in Photosynthetic Processes

Reda El-Shishtawy,Yas Al-Hadeethi,Robert Haddon,Saleh Al-Heniti,Bahaaudin Raffah,Kamal Berrada,Sayed Abdel-Khalek

doi:10.3390/en9121063

Abstract

The occurrence of coherence phenomenon as a result of the interference of the probability amplitude terms is among the principle features of quantum mechanics concepts. Current experiments display the presence of quantum techniques whose coherence is supplied over large interval times. Specifically, photosynthetic mechanisms in light-harvesting complexes furnish oscillatory behaviors owing to quantum coherence. In this manuscript, we study the coherent quantum energy transfer for a single-excitation and nonlocal correlation in a dimer system (donor+acceptor) displayed by two-level systems (TLSs), interacting with a cavity field with a time-dependent coupling effect considering the realistic situation of coupling between each TLS and the cavity field. We analyze and explore the specific conditions which are viable with real experimental realization for the ultimate transfer of quantum energy and nonlocal quantum correlation. We show that the enhancement of the probability for a single-excitation energy transfer greatly benefits from the energy detuning, photon-number transition, classicality of the field, and the time-dependent coupling effect. We also find that the entanglement between the donor and acceptor is very sensitive to the physical parameters and it can be generated during the coherent energy transfer.

Highlights

Aphotosynthetic light-harvesting system transforms the energy from the absorbed photons to the reaction center [1,2,3,4,5,6,7]
This article is organized as follows: in Section 2, we present the model for our system and the details of the formalism that describes the dependence of the physical parameters on the population dynamics of the coherent quantum energy transfer for a single-excitation and nonlocal correlation between the pigments; in Section 3, we discuss the main obtained results
These results indicate that the improvement of the efficiency of the coherent. These results indicate that the improvement of the efficiency of the coherent energy transfer for a energy transfer for a singleTLSs excitation benefits from theenergy combination of and the single excitation between greatlybetween benefits two-level systems (TLSs) from greatly the combination of the detuning energy detuning and time-dependent coupling effect in the TLS-field interaction

Summary

Introduction

Aphotosynthetic light-harvesting system transforms the energy from the absorbed photons to the reaction center [1,2,3,4,5,6,7]. Several recent important applications and illustrations of energy transfer are defined, such as the increase of the spectral and spatial cross-section in photosynthetic proteins using resonance energy transfer (light-harvesting proteins), in order to capture the quantum solar. Energies 2016, 9, 1063; doi:10.3390/en9121063 www.mdpi.com/journal/energies are defined, such as the increase of the spectral and spatial cross-section in photosynthetic proteins using resonance energy transfer (light-harvesting proteins), in order to capture the quantum solar energy by by photonic photonic systems. The the quantum quantum transport transport of of energy energy is is described described by by an an incoherent incoherent energy process where a donor atom captures the excitation energy and transported to an acceptor atom. Process where a donor atom captures the excitation energy and transported to an acceptor atom.

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Results

Conclusion