Since the days of Einstein, scientistshave been trying to directly observeboth of these aspects of light at thesame time. Now, scientists at EPFL have succeeded in capturing the first-ever snapshot of this dual behavior.Quantum mechanics tells us that light can behave simultaneously as aparticle or a wave.
the double-slit experimentis a demonstration that light and matter can display characteristics of both classically defined waves and particles; moreover, it displays the fundamentally probabilistic nature of quantum mechanical phenomena.