Photon-Photon Interaction

Photon-photon interaction refers to the phenomenon where two photons, or particles of light, can influence each other under certain conditions, despite traditionally not interacting directly. In extreme environments, such as near powerful lasers or in high-energy physics, photons can produce effects like electron-positron pair creation. This means they can generate matter from energy, following Einstein’s equation E=mc². While photons are usually considered non-interacting, quantum mechanics allows for these intriguing interactions, showcasing the complex nature of light and the fundamental principles of physics.