The effect of polarization entanglement in photon-photon scattering

12 Oct 2016  ·  Rätzel Dennis, Wilkens Martin, Menzel Ralf ·

It is found that the differential cross section of photon-photon scattering is a function of the degree of polarization entanglement of the two-photon state. A reduced, general expression for the differential cross section of photon-photon scattering is derived by applying simple symmetry arguments... An explicit expression is obtained for the example of photon-photon scattering due to virtual electron-positron pairs in Quantum Electrodynamics. It is shown how the effect in this explicit example can be explained as an effect of quantum interference and that it fits with the idea of distance-dependent forces. read more

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Quantum Physics High Energy Physics - Theory