Computing equilibrium states of cholesteric liquid crystals in elliptical channels with deflation algorithms
Computing equilibrium states of cholesteric liquid crystals in elliptical channels with deflation algorithms
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用紧缩算法计算椭圆通道中胆甾液晶的平衡状态
DOI:
10.1080/02678292.2017.1365385
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发表时间:
2017
期刊:
影响因子:
2.2
通讯作者:
Atherton, Timothy J.
中科院分区:
文献类型:
--
作者:
Emerson, David B.;Farrell, Patrick E.;Adler, James H.;MacLachlan, Scott P.;Atherton, Timothy J.
We study the problem of a cholesteric liquid crystal confined to an elliptical channel. The system is geometrically frustrated because the cholesteric prefers to adopt a uniform rate of twist deformation, but the elliptical domain precludes this. The frustration is resolved by deformation of the layers or introduction of defects, leading to a particularly rich family of equilibrium configurations. To identify the solution set, we adapt and apply a new family of algorithms, known as deflation methods that iteratively modify the free energy extremisation problem by removing previously known solutions. A second algorithm, deflated continuation, is used to track solution branches as a function of the aspect ratio of the ellipse and preferred pitch of the cholesteric.
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10.2172/1577437
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