The strange rules of the quantum world lead to many weird phenomena. One of these is the puzzling process of quantum imaging, which allows images to form in hitherto unimagined ways.
Researchers begin by creating entangled pairs by sending a single laser beam into a non-linear crystal, which converts single photons into entangled pairs of lower frequency photons, a process known as parametric down conversion. A continuous beam generates a series of pairs of entangled photons.
Next, they send the entangled photons towards a pair of detectors. Each member of an entangled pair by itself fluctuates in random ways that make its time and position of arrival uncertain.
Use one of the detectors to receive just one half of the entangled photons and the result is a blur, smeared by the process of randomness.
via technology review
February 28, 2012
Bad link. It just leads to the picture above.
pmartel: thanks…fixed.