电磁虫孔与虚磁单极子
Electromagnetic wormholes and virtual magnetic monopoles
摘要：
我们描述了电磁（EM）材料参数，介电常数$ε$和磁导率$μ$的新配置，允许一个构建从超材料的对象，作为无形的隧道。这些隧道允许电磁波在两点之间传播，但隧道及其所包围的区域无法被电磁观测所探测到。这样的设备功能相对于麦克斯韦方程的虫洞，并有效地改变了拓扑结构的空间相对于电磁波传播。我们提出了几个应用，包括虚拟磁单极子的设备。
英文摘要：
We describe new configurations of electromagnetic (EM) material parameters, the electric permittivity $ε$ and magnetic permeability $μ$, that allow one to construct from metamaterials objects that function as invisible tunnels. These allow EM wave propagation between two points, but the tunnels and the regions they enclose are not detectable to EM observations. Such devices function as wormholes with respect to Maxwell's equations and effectively change the topology of space vis-a-vis EM wave propagation. We suggest several applications, including devices behaving as virtual magnetic monopoles.
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