Quantum Camera On a Silicon Chip 42
stefanparvu14 writes "Physicists in Switzerland and California have developed a new type of camera capable of imaging quantum correlations between pairs of photons. The details are presented in the current issue of the open-access publication New Journal of Physics. Unlike a conventional camera with a CCD imager, this camera is composed of Single Photon Avalanche Diode (SPAD) pixels implemented on a high-performance CMOS chip. One of the authors has provided more background for the non-physicist. Apparently, it could be used to verify the existence of Bose-Einstein condensates that are now starting to be produced in new ways."
No picture with the aricle ... (Score:4, Informative)
Because sometimes the camera is there ... and sometimes it isn't.
The first link... (Score:2, Informative)
Re:The first link... (Score:3, Informative)
...to this page [www.nbl.fi] while interesting on its own, doesn't appear relevant to the article.
Notice the URL. Notice who posted the article.
Re:Unless I missunderstand the scale... (Score:5, Informative)
You're already observing the photons and yes, it sure does change them. They're absorbed.
The difference here is that instead of just noting that "oh, yup, a photon was absorbed," you detect whether or not a pair of photons was absorbed at the same time.
Bose-eisens-who-what?? (Score:5, Informative)
Confused yet? Me too.
Re:The first link... (Score:2, Informative)
...to this page [www.nbl.fi] while interesting on its own, doesn't appear relevant to the article.
Notice the URL. Notice who posted the article.
I know it is a page from the poster. But the page content doesn't match the link text.
Exactly. It seems to me it was a quick throw in to get traffic to his site. A link obviously unchecked in the editing process.