Yes, experiments have been conducted that incorporate detectors in the double-slit experiment, as described by Richard Feynman in his book "QED: The Strange Theory of Light and Matter." In Feynman's description, he discusses the idea of detecting which slit a particle passes through in the double-slit setup, which has implications for the interference pattern observed on the screen.
In the standard double-slit experiment, when particles are fired through the slits without any detectors, an interference pattern emerges on the screen, indicating the wave-like nature of particles. However, if detectors are placed at the slits to determine which path the particles take, the interference pattern disappears, and a particle-like behavior is observed instead.
Experiments have been conducted to verify this concept. By introducing detectors to determine the path of particles in the double-slit experiment, researchers have confirmed that the act of measurement or observation disrupts the interference pattern. The detection of which slit the particle passes through introduces a distinction between the two paths, destroying the coherence necessary for interference to occur.
These experiments highlight the principle of complementarity in quantum mechanics, where particles exhibit both wave-like and particle-like behavior, but the observation of one aspect can suppress the other. The presence of detectors to determine the particle's path introduces a disturbance that affects the interference pattern, demonstrating the fundamental nature of quantum mechanics.
It's important to note that there may be variations in experimental setups, and the specific details of the experiments can vary. However, the general concept of introducing detectors to determine the particle's path and observing the consequent impact on the interference pattern has been demonstrated in various experiments inspired by Feynman's explanation in QED.