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Measuring Vacuum Polarisation with High Power Lasers

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arxiv 1510.08456 v1 pith:3OKRGVQF submitted 2015-10-28 hep-ph physics.opticsphysics.plasm-ph

classification hep-phphysics.opticsphysics.plasm-ph
keywords vacuumbeenhighlaserspolarisationpowerquantumakin
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When exposed to intense electromagnetic fields, the quantum vacuum is expected to exhibit properties of a polarisable medium akin to a weakly nonlinear dielectric material. Various schemes have been proposed to measure such vacuum polarisation effects using a combination of high power lasers. Motivated by several planned experiments, we provide an overview of experimental signatures that have been suggested to confirm this prediction of quantum electrodynamics of real photon-photon scattering.

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  1. Coherent enhancement of QED cross-sections in electromagnetic backgrounds

    hep-ph 2024-12 conditional novelty 5.0 of 10

    This paper shows that replacing a photon with a classical laser field can coherently boost QED cross-sections and improve their energy scaling, for example sigma_1->1 ~ (omega/m)^4 versus sigma_2->2 ~ (omega/m)^6.

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