Detecting the Photon-Photon Interaction by Colliding Laser Beam Interferometry
Abstract
The feasibility of detecting the photon-photon interaction using Fabry-Perot type laser interferometers developed for gravity wave detection is demonstrated. An ``external'' laser beam, serving as a refractive medium, is alternatively fed into the cavities of the interferometer and made to collide with the ``internal'' beams thereby inducing a measurable phase difference between them.
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