New scientist has an article where quantum linked photons image a figure where the detector is far from the figurine. Go High Energy!
I think using high energy radiographic photons could thus image things like minerals at depth with some distance
Think how scanning a collimated beam of high energy photons like those from the "sticky tape" radiography effect could show where various minerals were, perhaps at some depth, across an entire landscape. Cheaper minerals would make things more affordable everywhere particularly benefitting the developing world.
The military could detect IED at a distance
gold prospectors would have a nifty new way to find gold. Imagine a gold miner with a new Quantumseek 5000 that actually sees a few feet through dirt or streambeds to describe the location of gold.
Truth seekers could make live radiographic movies of groups of people with a contactless distance polygraph
Although the amounts of radiation are not described yet this technology could also be used to mass screen breast cancer, persons who thought the radiation risk permissable could just walk to a unstaffed area that would autoradiograph to detect wellness at a distance
Theres even greater capability if the photons are quantum linked to neutrinos or atoms-- beanangel, Jan 18 2012 New Scientist Quantum imaging article http://www.newscien...com/article/dn13825the quantum linked photon image goes wow [beanangel, Jan 18 2012] a radiographic angiogram doing this with quantum linked photons goes with distance polygraphy http://www.youtube....zvM&feature=related [beanangel, Jan 18 2012] Hawking's latest book http://www.hawking.org.uk/Best description I've seen of quantum entanglement. [csea, Jan 18 2012] schematic of emission with detection at different area http://tinypic.com/r/2meoihf/5 [beanangel, Jan 18 2012] I'm beginning to be able to translate [beanangel]-speak. The title needs at least an (implied) verb!
I suggest rearranging:
Finding minerals with Radiographic quantum linked imaging results in cheaper minerals and greater prosperity.
The rest of the idea needs similar editing, but I need to reread Stephen Hawking's latest [link].-- csea, Jan 18 2012 The very appreciable thing about Shihs paper as well as the quantum transmission of data across a few hundred kilometers is the ability to have the detector distant from the linked photon. Thus the detector is able to be on the raymaker side rather than behind the imaged object. Quantum linked imaging completely skips reflection or interception to detect. Graphic at link.-- beanangel, Jan 18 2012 I didn't read Shih's paper but I read the linked article about it. It seems trivial to me, and not at all necessarily quantum. If I understand it correctly, it's equivalent to the following classical/macroscopic experiment:
1. You have two lasers that are mounted such that they can be aimed up/down and left/right, and their beams will always be parallel to each other.
2. In front of one laser you put an image sensor.
3. In front of the other laser, you put your object that you want to take a photo of. Next to this object you put another sensor that reports only when the laser is shining on the object, but not where on the object it is shining.
4. You move the lasers around at random or in a rectilinear or other pattern.
5. When the sensor next to the object reports that the object is being illuminated, it sends a signal to the image sensor to record a white pixel wherever its laser is currently shining on it. Pixels start black. Each time it records a white pixel it adds it to the image.
6. When you've moved the laser beam over the entire object, the image sensor will have recorded an image of the silhouette of the object.
7. You can upgrade the sensor next to the object to report brightness, and then have the image sensor record that brightness instead of just white. Then you get a monochrome image instead of a 1-bit one.
Anyway, the crucial point as I see it is that there's a sensor next to the object. The impression I got from your description of it was that there was no sensor next to the object, and the photons that struck the object modified the state of their entangled partners that went to the image sensor. That's not how entanglement works, as I understand it—you can't use entanglement to communicate by modifying the state of one particle and looking at the state of the other one elsewhere to see if it changed, because as soon as you modify one of the entangled particles, the particles just become disentangled.-- notexactly, Jul 16 2017 random, halfbakery