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Light can scatter from light, CERN physicists confirm
- wwarner 7y agoI don't understand the physics here... photons are bosons, and bosons pass through each other. Is the idea that the photons passing through the fluctuating vacuum occasionally produce fermions that can bump into each other, and then when they recombine the trajectory of the photons has changed?
- Iolaum 7y agoThe relevant physics for photon-photon scattering is Quantum Electrodynamics and is elegantly described by Feynman Diagrams. See the relevant diagrams on this stack exchange question: https://physics.stackexchange.com/questions/215697/photon-photon-scattering-feynman-diagram https://physics.stackexchange.com/questions/215697/photon-ph... To make a crude description, virtual fermions are exchanged between the two photons and this results in transfer of momentum and energy between them.