Phys.org October 24, 2019
An international team of researchers (UK, USA – Princeton University) experimentally demonstrated the distillation of a quantum image from measured data composed of a superposition of both quantum and classical light. They measured the image of an object formed under quantum illumination that is mixed with another image produced by classical light with the same spectrum and polarization, and demonstrated near-perfect separation of the two superimposed images by intensity correlation measurements. This work provides a method to mix and distinguish information carried by quantum and classical light, which may be useful for quantum imaging, communications, and security…read more. Open Access TECHNICAL ARTICLE
With the technique, researchers are able to separate the quantum image of the “dead cat,” and then subtract this image to the total image to obtain the classical image of the “alive cat.” Credit: University of Glasgow/H. Defienne