三维拓扑绝缘体的可调Casimir排斥
Tunable Casimir repulsion with three dimensional topological insulators
摘要：
在这封信中，我们表明，排斥和吸引的Casimir力之间的切换通过外部可调参数可以实现与两个拓扑绝缘体板。我们发现两个制度的排斥（吸引）力被发现在小（大）的距离板之间，在一个临界距离抵消。对于有效电磁作用有效的频率范围，该距离以对应于$1-ε(ω) (2/π)αθ$的长度尺度出现。
英文摘要：
In this Letter, we show that switching between repulsive and attractive Casimir forces by means of external tunable parameters could be realized with two topological insulator plates. We find two regimes where a repulsive (attractive) force is found at small (large) distances between the plates, canceling out at a critical distance. For a frequency range where the effective electromagnetic action is valid, this distance appears at length scales corresponding to $1-ε(ω) (2/π)αθ$.
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