标题： 表面等离子体模式和卡西米尔能量 显示英文标题

标题： Surface plasmon modes and the Casimir energy

摘要： 我们展示了表面等离子体在任意距离下对两个平行金属镜之间卡西米尔效应的影响。 使用等离子体模型来描述金属的光学响应，我们将卡西米尔能量表示为与倏逝表面等离子体模态和传播腔模态相关的贡献之和。 与直觉预期相反，为了确保卡西米尔能量的正确结果，所有距离下的等离子体模态贡献都是必要的。 其中一种等离子体模态会产生排斥性贡献，抵消来自传播腔模态的吸引力，而两者单独来看都远大于卡西米尔能量的实际值。 这也表明，可以通过表面等离子体来调节卡西米尔力的符号。 显示英文摘要

摘要： We show the influence of surface plasmons on the Casimir effect between two plane parallel metallic mirrors at arbitrary distances. Using the plasma model to describe the optical response of the metal, we express the Casimir energy as a sum of contributions associated with evanescent surface plasmon modes and propagative cavity modes. In contrast to naive expectations, the plasmonic modes contribution is essential at all distances in order to ensure the correct result for the Casimir energy. One of the two plasmonic modes gives rise to a repulsive contribution, balancing out the attractive contributions from propagating cavity modes, while both contributions taken separately are much larger than the actual value of the Casimir energy. This also suggests possibilities to tailor the sign of the Casimir force via surface plasmons.