A group of mathematicians who previously worked on possible cloaking devices have found the same theory could be equally applied to create things resembling wormholes. The team uses mathematical theory to create ‘metamaterials’ that can bend and curve electromagnetic fields – like bending light to make something appear invisible.
The wormholes they describe aren’t quite the instantaneous transportation portals described by Star Trek or Valve’s new computer game. The light still travels through the metamaterial tube but isn’t detectable outside it, by sight or other methods. Uses for this idea include endoscopic surgery and 3D televisions where all but the end tips of many beams of light are hidden by the wormhole, giving the appearance of a floating image.
[image and link via ScienceDaily, image courtesy of Rochester University]