The Photon Has Two Faces

The Photon Has Two Faces

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Over at Ars Technica, Matt Francis has the scoop on a nifty new quantum interference experiment using large molecules of phthalcyanine and its derivatives. The molecules are quite large — comprised of more than 100 atoms — which means this experiment is approaching that critical threshold where quantum effects (the subatomic realm) give way to classical physics (the macroscale realm in which we live).