8/9/2023 0 Comments Quantum physics projects![]() ![]() You can make the illumination going into the room arbitraily small, while allowing the interference effects to be detectable, and to reveal at which angles the photon returns to you, or if it is absorbed. You can detect interference when $N\epsilon$ is non-negligible, but this still makes it that a person inside the room will detect no photons. You then have a rotating lens which collects the photon amplitude fraction that come back out the window, and interferes with the major component of the beam. ![]() A sketch is as follows- you do the Elitzur Vaidman thing, split a photon into N components with magnitude $\epsilon$, where $N\epsilon^2$ is small, and scatter all these little photon components off the room in separated bunches. The mechanism has not been worked out in full, this is an old original idea of mine, but it is simple given the Elitzur Vaidman result. But, with a modification of the Elitzur-Vaidman bomb tester, you should be able to easily build a theoretical device which can scan a photograph of the room without ever allowing an appreciable probability of a photon ever being detected inside the room, outside your apparatus. Can you take a picture?Ĭlassically you can't do it, you either shine a photon into the room, or you don't. You have access to a light source, a window into the room (or you are in the room), beam-splitters, and interferometers, but you want to ensure that at any time the probability of a photon getting detected inside the room is negligible. Suppose you have a dark room, and you don't want to disturb it, you don't want to shine light on it. Here is a nice thing you can do at a high school level- show if it is possible to take a photograph in complete darkness. ![]()
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