Science Daily October 2, 2019
According to an international team of researchers (Japan, India) a camera set up outside a box that has Schrödinger’s cat takes a photo of the cat, and the scientists don’t know whether it is dead or alive. The flash from the camera has removed a “quantum tag” marking the superposition of the cat. The photo is now entangled with the fate of the cat i.e. we can decide what happened to the cat by processing this photo in a certain way. The researchers propose that depending on what method is used to process the photo, it is possible to find out if the cat is alive or dead, or what the flash did to the cat by restoring the quantum tag. The choice of the reader determines what we know about the cat. We can find out if it’s dead/alive or restore the quantum tag that was removed when the picture was taken, but not both…read more. Open Access TECHNICAL ARTICLE