Yes, light interference is a quantum phenomenon. Interference occurs when two or more light waves superpose, meaning they combine and interact with each other. This phenomenon is a direct consequence of the wave-like nature of light. In the context of quantum mechanics, light is described as a stream of particles called photons that also exhibit wave-like behavior.
Interference occurs due to the wave nature of photons and their ability to exhibit wave-particle duality. When two light waves overlap, their amplitudes can add up constructively or cancel out destructively depending on their relative phase. This interference pattern is observed in various experiments, such as the famous double-slit experiment, where light waves passing through two slits create an interference pattern on a screen.
Quantum mechanics provides a rigorous mathematical framework to describe and explain light interference phenomena, treating light as composed of individual photons that interfere with each other. The probabilistic nature of quantum mechanics allows for the prediction of the probability distribution of photons' positions and intensities in interference patterns, which has been experimentally confirmed in numerous studies.