Non-specular reflections in a macroscopic system with wave-particle duality: spiral waves in bounded media.
Non-specular reflections in a macroscopic system with wave-particle duality: spiral waves in bounded media.
复制标题
具有波粒二象性的宏观系统中的非镜面反射：有界介质中的螺旋波。
作者：
Jacob Langham;D. Barkley
可激发介质中的螺旋波既具有类波性质，又具有类粒子性质。当被共振地强制（以螺旋旋转频率强制）时，螺旋芯部沿沿着直线轨迹行进，但可能从介质边界反射。在这里，数值模拟被用来研究从两种类型的边界的反射。第一个是波不能穿过的无通量边界，而第二个是波穿过的介质激发性的阶跃变化。小芯和大芯螺旋进行了研究。在所有情况下的主要特征是，对于大范围的入射角，反射角随入射角变化很小。与比克塔舍夫和霍尔顿的理论进行了比较。大核螺旋还表现出其他现象，如与边界的结合。多次反射的动力学被简要地考虑。
Spiral waves in excitable media possess both wave-like and particle-like properties. When resonantly forced (forced at the spiral rotation frequency) spiral cores travel along straight trajectories, but may reflect from medium boundaries. Here, numerical simulations are used to study reflections from two types of boundaries. The first is a no-flux boundary which waves cannot cross, while the second is a step change in the medium excitability which waves do cross. Both small-core and large-core spirals are investigated. The predominant feature in all cases is that the reflected angle varies very little with incident angle for large ranges of incident angles. Comparisons are made to the theory of Biktashev and Holden. Large-core spirals exhibit other phenomena such as binding to boundaries. The dynamics of multiple reflections is briefly considered.
影响因子：
8.6
作者：
Biktashev, V. N.;Barkley, D.;Biktasheva, I. V.
通讯作者：
Biktasheva, I. V.
影响因子：
2.4
作者：
Biktasheva, I. V.;Barkley, D.;Foulkes, A. J.
通讯作者：
Foulkes, A. J.