热Schwinger效应：压缩纤维束中的缺陷产生
Thermal Schwinger Effect: Defect Production in Compressed Filament Bundles
摘要：
我们讨论了由瞬时交联剂约束的生物聚合物丝束对压缩载荷的响应。这些系统允许在通常低于传统欧拉屈曲的应力下的机械不稳定性。在这种不稳定性，有热激活对生产的拓扑缺陷，产生局部区域的弯曲-扭结。这些扭结缩短了束的有效长度，从而降低了机械加载结构的弹性能量。这种效应是施温格效应的热模拟，其中足够大的电场导致电子-正电子对的产生。我们讨论了这种类比，并描述了这种分析的影响，在压缩下的各种类型的生物聚合物丝束的力学。
英文摘要：
We discuss the response of biopolymer filament bundles bound by transient cross linkers to compressive loading. These systems admit a mechanical instability at stresses typically below that of traditional Euler buckling. In this instability, there is thermally-activated pair production of topological defects that generate localized regions of bending -- kinks. These kinks shorten the bundle's effective length thereby reducing the elastic energy of the mechanically loaded structure. This effect is the thermal analog of the Schwinger effect, in which a sufficiently large electric field causes electron-positron pair production. We discuss this analogy and describe the implications of this analysis for the mechanics of biopolymer filament bundles of various types under compression.
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