Poisson spot with single photons

In summary, the "Poisson spot with single photons" refers to the phenomenon where a point source of light, when shone through an aperture or around an obstacle, creates a bright spot at the center of the shadow region, known as the Poisson spot or Arago spot. This effect can be observed even when photons are emitted one at a time, demonstrating the wave-particle duality of light. Experiments with single photons confirm the presence of this spot, highlighting the fundamental principles of quantum mechanics and the behavior of light as both a wave and a particle.
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This thread has drifted away from its original topic and has started to become argumentative. As such, I believe it is time to close it. Thank you everyone who participated.
 
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