Effect of polarization entanglement in photonphoton scattering
Abstract
It is found that the differential cross section of photonphoton scattering is a function of the degree of polarization entanglement of the twophoton state. A reduced general expression for the differential cross section of photonphoton scattering is derived by applying simple symmetry arguments. An explicit expression is obtained for the example of photonphoton scattering due to virtual electronpositron 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 distancedependent forces.
 Publication:

Physical Review A
 Pub Date:
 January 2017
 DOI:
 10.1103/PhysRevA.95.012101
 arXiv:
 arXiv:1605.00582
 Bibcode:
 2017PhRvA..95a2101R
 Keywords:

 Quantum Physics;
 High Energy Physics  Theory;
 81V80;
 78A45;
 81P40;
 81V10
 EPrint:
 7 pages, 4 figures. arXiv admin note: text overlap with arXiv:1511.01237