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arXiv 1503.00178cond-mat.mes-hallphysics.chem-phq-bio.BMquant-ph
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有机分子中的环境辅助量子输运

Environment Assisted Quantum Transport in Organic Molecules

Gabor Vattay, Istvan Csabai

摘要:

环境辅助量子输运(ENAQT)在激子输运过程中的作用是量子生物学的新发现之一。在无序量子系统中,当环境破坏了量子干涉时,传输是最有效的,但耦合并没有驱动系统完全经典的热扩散。这种介于纯量子域和半经典域之间的平衡领域在其他生物传输过程中没有被考虑过,例如通过有机分子的电荷传输。假定受体-配体复合物中的结合是静态的,因为假定电子不能穿过配体分子。我们表明,ENAQT使交叉配体运输可能和有效的某些原子之间的开放的方式为受体上的电荷分布的重组时,配体分子对接。这种新的效应可能会改变我们对受体如何工作的理解。我们在咖啡因分子上展示了室温下的ENAQT。

英文摘要:

One of the new discoveries in quantum biology is the role of Environment Assisted Quantum Transport (ENAQT) in excitonic transport processes. In disordered quantum systems transport is most efficient when the environment just destroys quantum interferences responsible for localization, but the coupling does not drive the system to fully classical thermal diffusion yet. This poised realm between the pure quantum and the semi-classical domains has not been considered in other biological transport processes, such as charge transport through organic molecules. Binding in receptor-ligand complexes is assumed to be static as electrons are assumed to be not able to cross the ligand molecule. We show that ENAQT makes cross ligand transport possible and efficient between certain atoms opening the way for the reorganization of the charge distribution on the receptor when the ligand molecule docks. This new effect can potentially change our understanding how receptors work. We demonstrate room temperature ENAQT on the caffeine molecule.

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