So what exactly is this a picture of? Two entangled photons? I don't have the background for the full maths involved here, but there's not enough in that article to tell me why it's exciting ...
In short: - Create beam of entangled photons - Split off half of them - Pass one half through liquid crystal making them behave funny - Photograph the ones that where not passed through crystal and, lo and behold, observe the funny behavior