Environment-assisted excitation energy transfer in LH1-RC-type and LH2-type trimers

Environment-assisted excitation energy transfer in LH1-RC-type and LH2-type trimers
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LH1-RC 型和 LH2 型三聚体中的环境辅助激发能量转移

DOI:
10.1007/s11433-012-4845-z
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发表时间:
2012-07
期刊:
Sci China-Phys Mech Astron
影响因子:
--
通讯作者:
L.M. Kuang
L.M. Kuang
中科院分区:
其他
文献类型:
--
作者:
Q.S. Tan;L.M. Kuang

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通过计算LH 1-RC型和LH 2型三聚体的能量传递效率(埃特),模拟LH 1-RC型和LH 2型捕光复合物的基本晶胞中的能量传递行为,研究了环境辅助激发能量传递(EET)。三聚体的量子态演化由非厄米量子主方程描述。在这些三聚体系统的埃特的非厄米主方程的有限温度下使用的数值解进行了研究。我们从理论上揭示了温度辅助的埃特增强。结果表明,在量子相变临界点附近,可以产生效率接近单位的高效EET。
In this work, we study environment-assisted excitation energy transfer (EET) through calculating energy transfer efficiency (ETE) in LH1-RC-type and LH2-type trimers, which can be used to mimic energy transfer behaviors in the basic unit cells of LH1-RC and LH2 light-harvesting complexes. Quantum state evolution of the trimers is described by a non-Hermitian quantum master equation. ETE in these trimer systems is investigated by the use of numerical solutions at finite temperatures for the non-Hermitian master equation. We theoretically reveal the temperature-assisted ETE enhancement. It is found that highly efficient EET with nearly unit efficiency may occur in the nearby regime of the critical point of quantum phase transition.
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