Bright galaxies put dark matter to the test. ScienceDaily. Retrieved June 2, 2025 from www.sciencedaily.com / releases / 2024 / 01 / 240131183501.htm. University of California - Los Angeles.

Photons arrive everywhere on the screen, but in the bright/dark regions in a bright/dark quantum state, respectively, that can/cannot excite the atom which is used to monitor the interference pattern.

New quantum optics theory proposes that classical interference arises from bright and dark states of light. ... which concerned the role of a which-path observer in double-slit experiments.