文件名称：隐身cloak的paper
文件大小：474KB
文件格式：PDF
更新时间：2017-09-22 10:54:23
隐身
We introduce a new type of electromagnetic cloak, the spacetime cloak (STC), which conceals events rather than objects. Non-emitting events occurring during a restricted period are never suspected by a distant observer. The cloak works by locally manipulating the speed of light of an initially uniform light distribution, whilst the light rays themselves always follow straight paths.