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arXiv 0912.0122quant-phcond-mat.softphysics.bio-phq-bio.BM
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光捕获复合物中的纠缠和纠缠功率

Entanglement and entangling power of the dynamics in light-harvesting complexes

Filippo Caruso, Alex W. Chin, Animesh Datta, Susana F. Huelga, Martin B. Plenio

摘要:

我们研究了Fenna-Matthews-Olson(FMO)复合物网络模型中激子能量转移(EET)过程中量子纠缠的演化,FMO复合物是一种生物色素-蛋白质复合物,参与硫细菌光合作用的早期步骤。马尔可夫的影响,以及空间和时间相关的(非马尔可夫)噪声的产生上的纠缠在不同的生色团(网站纠缠)和不同的激子本征态(模式纠缠)的研究,为不同的注入机制,包括热和相干激光激发。此外,我们研究了在自然操作条件下的FMO复合物的纠缠功率。虽然量子信息处理倾向于支持最大纠缠,但近单位EET是由于相干过程和噪声过程之间复杂的相互作用而实现的,其中演化的初始部分显示两种形式的纠缠的中间值。

英文摘要:

We study the evolution of quantum entanglement during exciton energy transfer (EET) in a network model of the Fenna-Matthews-Olson (FMO) complex, a biological pigment-protein complex involved in the early steps of photosynthesis in sulphur bacteria. The influence of Markovian, as well as spatially and temporally correlated (non-Markovian) noise on the generation of entanglement across distinct chromophores (site entanglement) and different excitonic eigenstates (mode entanglement) is studied for different injection mechanisms, including thermal and coherent laser excitation. Additionally, we study the entangling power of the FMO complex under natural operating conditions. While quantum information processing tends to favor maximal entanglement, near unit EET is achieved as the result of an intricate interplay between coherent and noisy processes where the initial part of the evolution displays intermediate values of both forms of entanglement.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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