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arXiv 1606.02769physics.bio-phcond-mat.softq-bio.SC
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Landau理论与病毒衣壳手性的出现

Landau Theory and the Emergence of Chirality in Viral Capsids

Sanjay Dharmavaram, Fangming Xie, William Klug, Joseph Rudnick, Robijn Bruinsma

摘要:

我们提出了一个广义的Landau-Brazovskii理论,用于手性分子在球面上的固化。随着球体半径的增加,人们遇到第一个区间,在那里出现了强大的非手性密度调制与二十面体对称性通过一阶跃。接下来,我们会遇到脆弱但稳定的二十面体结构仍然可以构造的区间,但只能通过多重不可约表示的叠加来构造。手性二十面体结构通过连续或非常弱的一级跃迁出现。在这些参数区间之外,二十面体对称性沿着三重轴或五重轴被破坏。理论的预测与最近的数值模拟进行了比较。

英文摘要:

We present a generalized Landau-Brazovskii theory for the solidification of chiral molecules on a spherical surface. With increasing sphere radius one encounters first intervals where robust achiral density modulations appear with icosahedral symmetry via first-order transitions. Next, one en- counters intervals where fragile but stable icosahedral structures still can be constructed but only by superposition of multiple irreducible representations. Chiral icoshedral structures appear via continuous or very weakly first-order transitions. Outside these parameter intervals, icosahedral symmetry is broken along a three-fold axis or a five-fold axis. The predictions of the theory are compared with recent numerical simulations.

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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