气候变化领域集成服务门户(CCPortal): Emergence of dynamic vortex glasses in disordered polar active fluids

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DOI	10.1073/pnas.2018218118
	Emergence of dynamic vortex glasses in disordered polar active fluids
	Chardac A.; Shankar S.; Cristina Marchetti M.; Bartolo D.
发表日期	2021
ISSN	00278424
卷号	118 期号:10
英文摘要	In equilibrium, disorder conspires with topological defects to redefine the ordered states of matter in systems as diverse as crystals, superconductors, and liquid crystals. Far from equilibrium, however, the consequences of quenched disorder on active condensed matter remain virtually uncharted. Here, we reveal a state of strongly disordered active matter with no counterparts in equilibrium: a dynamical vortex glass. Combining microfluidic experiments and theory, we show how colloidal flocks collectively cruise through disordered environments without relaxing the topological singularities of their flows. The resulting state is highly dynamical but the flow patterns, shaped by a finite density of frozen vortices, are stationary and exponentially degenerated. Quenched isotropic disorder acts as a random gauge field turning active liquids into dynamical vortex glasses. We argue that this robust mechanism should shape the collective dynamics of a broad class of disordered active matter, from synthetic active nematics to collections of living cells exploring heterogeneous media. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Active matter; Disordered media; Quincke rollers; Topological defects
语种	英语
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/180327
作者单位	Université de Lyon, École Normale Supérieure de Lyon, Université Claude Bernard, CNRS, Laboratoire de Physique, Lyon, F-69342, France; Department of Physics, Harvard University, Cambridge, MA 02138, United States; Department of Physics, University of California, Santa Barbara, CA 93106, United States
推荐引用方式 GB/T 7714	Chardac A.,Shankar S.,Cristina Marchetti M.,et al. Emergence of dynamic vortex glasses in disordered polar active fluids[J],2021,118(10).
APA	Chardac A.,Shankar S.,Cristina Marchetti M.,&Bartolo D..(2021).Emergence of dynamic vortex glasses in disordered polar active fluids.Proceedings of the National Academy of Sciences of the United States of America,118(10).
MLA	Chardac A.,et al."Emergence of dynamic vortex glasses in disordered polar active fluids".Proceedings of the National Academy of Sciences of the United States of America 118.10(2021).