Yes, in the double-slit experiment, when we have information about which slit the particle (such as a photon) passes through, the wave-like interference pattern disappears, and we observe a particle-like pattern instead.
The interference pattern arises due to the wave nature of the particles, where the waves from the two slits interfere constructively and destructively to produce a pattern of bright and dark fringes on the screen. However, if we introduce a method to determine or observe which path the particle takes (e.g., by placing detectors at the slits), it disrupts the interference pattern.
The act of observing or measuring which slit the particle goes through introduces additional interactions and disturbances that "collapse" the wave function associated with the particle. This collapse leads to the loss of interference between the two wavefronts from the slits, resulting in a particle-like pattern on the screen. Essentially, the knowledge of which path the particle takes disrupts the superposition and wave-like behavior, leading to a pattern that resembles the expected behavior of individual particles.
This phenomenon is known as the "quantum eraser" effect, where even after obtaining which-path information, it is still possible to restore the interference pattern by performing certain additional measurements that erase the path information. This further demonstrates the complementarity and wave-particle duality inherent in quantum systems.
It's important to note that the choice of measurement method or interaction that reveals the path of the particle can have an impact on the observed outcome. Different measurement techniques can yield different results, and the precise details of the experimental setup can influence the patterns observed.