有限温度下三维拓扑绝缘体间Casimir排斥相互作用的临界表面带隙
Critical surface band gap of repulsive Casimir interaction between three dimensional topological insulators at finite temperature
摘要：
我们将具有相反拓扑磁电极化率和有限表面带隙的拓扑绝缘体之间Casimir相互作用的计算推广到有限温度的情况。我们发现有限的温度定量地降低了排斥峰，增大了Casimir排斥力的临界表面能隙$m_c$。然而，普适性质$m_c a \sim 1/2$仍然适用于各种振荡强度，温度范围和拓扑磁电极化率。
英文摘要：
We generalize the calculation of Casimir interaction between topological insulators with opposite topological magnetoelectric polarizabilities and finite surface band gaps to finite Temperature cases. We find that finite temperature quantitatively depress the repulsive peak and enlarge the critical surface gap $m_c$ for repulsive Casimir force. However the universal property $m_c a \sim 1/2$ is still valid for various oscillation strength, temperature region and topological magnetoelectric polarizabilities.
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