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arXiv 2112.04498cond-mat.softcond-mat.stat-mechnlin.AOphysics.flu-dynquant-ph
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胶体时间晶体及其温度力学性质

A colloidal time crystal and its tempomechanical properties

Westfälische Wilhelms-Universität Münster(明斯特大学)

Marina Evers, Raphael Wittkowski

摘要:

对称性的自发破缺是物理学中普遍存在的现象。当时间平移对称性自发破缺时,可能会出现一种奇异的物质非平衡态,其中相同的结构在时间上重复。这种被称为“时间晶体”的状态最近引起了人们的极大兴趣。另一个相对较新的研究领域涉及活性物质。由胶体粒子组成的材料,从环境中消耗能量并推动自己前进,可以表现出有趣的特性,如超流性,这些特性以前只在量子力学系统中才知道。在这里,我们将这些乍一看完全不同的研究领域结合在一起,展示了自推进的胶体颗粒可以形成经典的连续时间晶体。我们提出了一个状态图,显示这种新的物质状态出现。此外,我们调查它的tempomechanical性能,并提出了一个时间的应力-应变图显示平行于传统的材料科学,但也显着的新属性,没有一个对应的普通材料。

英文摘要:

The spontaneous breaking of symmetries is a widespread phenomenon in physics. When time translational symmetry is spontaneously broken, an exotic nonequilibrium state of matter in which the same structures repeat themselves in time can arise. This state, known as "time crystal", attracted a lot of interest recently. Another relatively new research area deals with active matter. Materials consisting of colloidal particles that consume energy from their environment and propel themselves forward can exhibit intriguing properties like superfluidity that were previously known only from quantum-mechanical systems. Here, we bring together these - at first glance completely different - research fields by showing that self-propelled colloidal particles can form classical continuous time crystals. We present a state diagram showing where this new state of matter arises. Furthermore, we investigate its tempomechanical properties and present a temporal stress-strain diagram showing parallels to conventional materials science but also remarkable new properties that do not have a counterpart in common materials.

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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