Are there any experimantal evidences which imply that antimatter interacts gravitationally(adsbygoogle = window.adsbygoogle || []).push({});

in exactly the same way as matter.

I found one argument in "Feynamn lectures on gravitation":

Let's consider correction to binding energy of an electron in a atom coming from

vacuum polarization. Since this correction involves pairs of particles and antiparticles

if antimater gravitational interaction was different then matter interaction then the

ratio of gravitational to inertial mass of different substances would be slightly different.

Since we don't meassure any differences the matter and antimatter interacts gravitationally

in the same way.

I consider this type of argumentation as vague. I don't know whether we can treat

virtual particles as real (the paris are in this case virtual). Are there any direct evidences

of gravitational interaction of antimatter.

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# Gravitational behaviour of antimatter

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