Emergent smectic order in simple active particle models
Emergent smectic order in simple active particle models
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简单活性粒子模型中的涌现近晶序
DOI：
10.1088/1367-2630/18/6/063015
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发表时间：
2016-02
影响因子：
3.3
通讯作者：
Toner John
中科院分区：
文献类型：
--
作者：
Romanczuk Pawel;Chate Hugues;Chen Leiming;Ngo S;rine;Toner John
Novel ‘smectic-P’ behavior, in which self-propelled particles form rows and move on average along.them, occurs generically within the orientationally ordered phase of simple models that we simulate..Both apolar (head–tail symmetric) and polar (head–tail asymmetric) models with aligning and.repulsive interactions exhibit slow algebraic decay of smectic order with system size up to some finite.length scale, after which faster decay occurs. In the apolar case, this scale is that of an undulation.instability of the rows. In the polar case, this instability is absent, but traveling fluctuations disrupt the.rows in large systems and motion and smectic order may spontaneously globally rotate. These.observations agree with a new hydrodynamic theory which we present here. Variants of our models.also exhibit active smectic ‘A’ and ‘C’ order, with motion orthogonal and oblique to the layers.respectively.
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影响因子：
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作者：
KARDAR, M;PARISI, G;ZHANG, YC
通讯作者：
ZHANG, YC
影响因子：
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作者：
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通讯作者：
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影响因子：
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影响因子：
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