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Researchers from the Institute for Quantum Optics and Quantum Information (IQOQI), the Vienna Center for Quantum Science and Technology (VCQ), and the University of Vienna
have developed a new quantum imaging technique in which the image has been obtained without ever detecting the light that was used to illuminate the imaged object.
Their sketch of a cat was generated with photons that have never touched the object, instead using entangled pairs of photons and discarding the photons that have interacted with the sketch. The researchers are confident that their new imaging concept is very versatile and could even find applications where low light imaging is crucial, in fields such as biological or medical imaging.
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(Score: 2) by dlb on Friday December 19 2014, @02:15PM
but isn't that light already defined the cat state, no matter if it went to the camera or in the environment around the camera?
You've hit the nail on the head, here. I don't understand quantum mechanics, either, but isn't one of the tenets that you cannot get information about the state of an object without changing that object's state in the process? Something doesn't sound right in the summary. (Disclaimer: not only do I not understand Q.M., but I didn't read the article. With apologies....)