Discharging dynamics of topological batteries
Discharging dynamics of topological batteries
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DOI：
10.1103/physrevresearch.2.043196
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发表时间：
2020-02
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影响因子：
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通讯作者：
Vishal P. Patil;Žiga Kos;M. Ravnik;J. Dunkel
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文献类型：
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作者：
Vishal P. Patil;Žiga Kos;M. Ravnik;J. Dunkel
拓扑约束长期以来一直被认为是在一系列长度尺度上定位和存储能量的有效机制，从DNA中的结到湍流等离子体。尽管最近的理论和实验进展的拓扑状态的制备，拓扑结构中的放电动力学的作用还没有得到很好的理解。在这里，我们调查强大的拓扑能量释放协议在两个原型软系统通过模拟238打结的弹性纤维和3D液晶在一系列不同的拓扑结构。通过破坏弹性纤维或切换液晶表面锚定，这种拓扑电池可以执行机械功或驱动流体流动。我们的研究揭示了拓扑共振态的能量释放变得超低或超快。由于其固有的稳定性，我们期望这种可调拓扑电池在软物质中的能量存储和定向释放方面具有广泛的应用。
Topological constraints have long been known to provide efficient mechanisms for localizing and storing energy across a range of length scales, from knots in DNA to turbulent plasmas. Despite recent theoretical and experimental progress on the preparation of topological states, the role of topology in the discharging dynamics is not well understood. Here, we investigate robust topological energy release protocols in two archetypal soft systems through simulations of 238 knotted elastic fibers and 3D liquid crystals across a range of different topologies. By breaking the elastic fiber or switching the liquid crystal surface anchoring, such topological batteries can perform mechanical work or drive fluid flows. Our study reveals topologically resonant states for which energy release becomes superslow or superfast. Owing to their intrinsic stability we expect such tunable topological batteries to have broad applications to storage and directed release of energy in soft matter.