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The key to the effect is the idea - really just a conjecture, and as the paper states, "these ideas have not been met without controversy" - that there are materials that are opaque to gravity waves in the same way that conductors are opaque to EM waves. If that's true, then the cavity between parallel plates will contain a reduced set of modes of the ...

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I have read the paper and the gravitational explanation of the Casimir effect is not the main point, it's the experiment that provides evidence of the graviton's existence. The paper starts by drawing a macroscopic analogy between Maxwell's equations and Einstein's linearized field equations (known as gravitoelectromagnetism). The author uses GEM because of ...

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When I read your post : so that the universe has a great big ball of virtual particles surrounding it and pulling it outwards slightly I worry that you might think the universe is a giant 3D ball of matter sitting inside an infinite 3d space. That would indicate that we have to be far from an edge (since we don't see an edge), which harks way back to ...

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I cannot answer to all the questions but would like to stress something regarding what the Casimir effect tells us and what it doesn't. If you look at how it is derived for the usual EM interaction, an experimental verification of the standard Casimir effect tells us that: the EM field can have standing waves between two plates and outside them There ...

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The best experimental evidence comes from photon-photon collisions. These occur during collisions of virtual particles (e.g. quarks) surrounding bremsstrahlung photons in an $e^{+}e^{-}$ collider. From the tone of your question, I get the feeling you're looking for a simple, common experience example. However, the phenomenon is a high-energy quantum effect ...

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