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arXiv 0710.0220cond-mat.softphysics.bio-phquant-ph
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磁辅助准周期结构在Russell-FeS "泡沫"提供一个量子相干的生命起源?

Can magnetism-assisted quasiperiodic structures in Russell-FeS `bubbles' offer a quantum coherent origin of life?

Gargi Mitra--Delmotte, A. N. Mitra

摘要:

本文旨在扩大Russell等人的碱性渗漏现场热液丘情景的范围,通过呼吁其更广泛的画布来假设通过FeS膜的凝胶相内的力的相互作用进行的greatite簇的自组装:解离与定向附着的Rayleigh-Benard对流的定向热传递(小集群)和磁力(大集群)的协会,后者由磁丘成分协助。微小的团簇在团簇层中的定向运动让人想起萌芽、分子马达、凯恩斯-史密斯假设的前RNA世界和光学极性等过程。(软)多核形成速率高于(硬)微晶的生长速率,与二十面体相关(晶体学禁止!)草莓状形态。这种模式表明了一个链接到非周期性,从而加强了准周期性的连接,可以提供一个自然的访问功能,如表面限制,异常传输和低热导率,同时促进通过集群的扩散。磁性提供了一系列的特征:原始的多细胞性;组装分子的相位相关性;克服热退相干。这些动态嵌套结构为迭代计算、自适应学习和相干量子搜索提供了可能性。酶FeS簇和Hadean洋底之间的联系被视为一个更大的概念框架的一部分,揭示了磁性和生命起源的作用。

英文摘要:

This paper seeks to expand the scope of the alkaline seepage site hydrothermal mound scenario of Russell et al, by appealing to its wider canvas for hypothesizing self-assembly of gregite clusters via interplay of forces within the gel phase of FeS membranes: directed heat transport a la Rayleigh-Benard convection for dissociation, vs oriented attachment (small clusters) and magnetic forces (large clusters) for association, the latter assisted by magnetic mound constituents. The directed movement of tiny clusters through cluster layers are reminiscent of processes like budding, molecular motors, pre-RNA world on the lines of Cairns-Smith's hypothesis, and optical polarity. Higher rate of (soft) multinucleate formation vs growth rate of (rigid) microcrystals, correlates with icosahedral (forbidden crystallographically!) framboidal morphology. This pattern indicates a link to phylotaxis, thus reinforcing the quasi-periodicity connection which can provide a natural access to features like surface limit, anomalous transport and low thermal conductivity, while facilitating diffusion through clusters. And magnetism offers a hierarchy of features: primordial multicellularity; phase correlations of assembled molecules; overcoming thermal decoherence. These dynamical nested structures offer possibilities for iterative computations, adaptive learning, and coherent quantum searches. The link between enzymatic FeS clusters and the Hadean ocean floor is seen as part of a larger conceptual framework uncovering a role for Magnetism and the Origin of Life.

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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