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Quantum Foam
Spacetime at the Planck scale is topologically nontrivial, manifesting a granulated structure,
which has been described as Quantum Foam. A better description may be "like the bubbles at the top of a
glass of Champagne";
New droplets emerge from the Champaign and old droplets vanish to give a dynamic medium.
It is the ineraction with this dynamic medium that causes the Casimir force on real world objects. Another
manifestation of this dynamic quantum medium is it's potential to interact with the atom beams in atom
interferometers, one of the observations expected from the HYPER project. (see
Fundamental Physics Links. )
Also see
Giovanni Amelino-Camelia paper in Nature Vol 410. for possible effects in interferometers such as LISA.
More about Champagne.
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