生物同手性是由自旋极化电子引起的吗？
Did bio-homochirality arise from spin-polarized electron?
摘要：
生物同手性的起源是一个备受争议的话题。手征性和地球上生命的出现是一种对称性的破坏，可以与宇宙演化中的对称性破坏相比较。从不对称转移的角度来看，分子水平上的手性可能来源于亚原子水平上的电子自旋。因此，本文介绍和讨论了自旋诱导手性选择性（SICS）机制及其推广。由量子电动力学（QED）导出的应力或自旋矩可能是不对称性转移和分子手性形成的驱动力。最近的一些实验结果似乎支持SICS猜想。如果自旋极化电子（SPEs）确实导致生命具有手性选择性，那么磁性半金属材料，如硫铁矿（Fe3S4），一种存在于生命可能出现的原始位置的矿物，可能会作为自旋过滤器产生SPEs，然后通过SICS机制诱导手性分子的不对称合成。所有这些尝试性的想法可能有助于解释同手性和生命如何在早期地球上出现。
英文摘要：
The origin of bio-homochirality is a subject of much debate. The emergence of chirality and life on earth is a break of symmetry to be compared with the breaks of symmetry in the evolution of the universe. Based on a perspective of asymmetry transfer, the chirality at molecular level might stem from electron spin at subatomic level. Accordingly, in this paper a spin-induced chiral selectivity (SICS) mechanism and its outreach are introduced and discussed. The stress force or spin torque derived from quantum electrodynamics (QED) might be the driving force for the transfer of asymmetry and the formation of molecular chirality. Some recent experimental results seem to support the SICS conjecture. If spin-polarized electrons (SPEs) did cause life to become chirally selective, a magnetic half-metal material such as greigite (Fe3S4), a mineral present in a primordial site where life could have emerged, might act as a spin filter to produce SPEs, which then induced the asymmetric synthesis of chiral molecules via the SICS mechanism. All these tentative thoughts may help explain how homochirality and life could have arisen on the early Earth.
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。
