Effect of neutral modes on the order of a transition

IF 1 4区 工程技术 Q4 MECHANICS Comptes Rendus Mecanique Pub Date : 2020-11-16 DOI:10.5802/crmeca.21
S. Fauve
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Abstract

Neutral modes related to spontaneous broken symmetries at the onset of a pattern-forming instability can strongly modify the nature of secondary instabilities of the pattern. In particular these neutral modes can change the order of the secondary transition making it first order or subcritical in the language of bifurcation theory. We first discuss this phenomenon in the context of the drift bifurcation from stationary to traveling patterns. We then consider patterns that undergo a spatial period-doubling bifurcation like the Peierls transition in solid state physics. Résumé. Je rappelle comment une expérience réalisée par Yves Couder et son groupe a motivé des travaux théoriques qui ont montré que les modes de phase d’une structure cellulaire engendrée par instabilité peuvent affecter la nature des instabilités secondaires de cette structure, à savoir, le caractère propagatif ou non de l’instabilité secondaire et sa sous-criticalité. Je discute ensuite la sous-criticalité résultant du couplage avec les modes de phase sur d’autres exemples tels que la transition de Peierls en physique de la matière condensée.
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中性模式对跃迁阶的影响
中性时尚related to a破symmetries at the onset of spontaneous pattern-forming adc instability,从与the nature of中学触发圣母的模式。In these中性方式具有法律地位的can change the order of the making it first order or中学过渡subcritical In the language of分叉理论。= =地理= =根据美国人口普查,这个县的面积为。We then that年联同形态空间一下了分叉period-doubling like the Peierls转变in solid state物理学。摘要。提醒我怎么Yves Couder和他的团队所做的一项实验,已促使显示模式的理论研究阶段的细胞结构所引发的动荡可能影响次要性质不稳定的这种结构,即是否是propagatif中学和其sous-criticalité动荡。然后,我将在凝聚态物理中的Peierls跃迁等例子中讨论由相模耦合引起的次临界性。
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来源期刊
Comptes Rendus Mecanique
Comptes Rendus Mecanique 物理-力学
CiteScore
1.40
自引率
0.00%
发文量
0
审稿时长
12 months
期刊介绍: The Comptes rendus - Mécanique cover all fields of the discipline: Logic, Combinatorics, Number Theory, Group Theory, Mathematical Analysis, (Partial) Differential Equations, Geometry, Topology, Dynamical systems, Mathematical Physics, Mathematical Problems in Mechanics, Signal Theory, Mathematical Economics, … The journal publishes original and high-quality research articles. These can be in either in English or in French, with an abstract in both languages. An abridged version of the main text in the second language may also be included.
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