"Spooky" quantum cameras can capture images from photons that never interacted with the objects pictured.
 |
By utilizing a phenomenon that Einstein famously called "spooky," scientists have successfully caught "ghosts" on film for the first time using quantum cameras.
The "ghosts" captured on camera weren't the kind you might first think; scientists didn't discover the wandering lost souls of our ancestors or those who were brutally killed in a massacre ( :P ). Rather, they were able to capture images of objects from photons that never actually encountered the objects pictured. The technology has been dubbed "ghost imaging."
Normal cameras work by capturing light that bounces back from an object. That's how optics work. So how can it be possible to capture an image of an object from light if the light never bounced off the object? The answer in short: quantum entanglement.
Entanglement is the strange instantaneous connection that has been proved to exist between certain particles even if they are separated by vast distances. How exactly the phenomenon works remains a mystery, but the fact that it works has been proven. [Read the whole interesting phenomenon here.]
"What they've done is a very clever trick. In some ways it is magical," explained quantum optics expert Paul Lett of the National Institute of Standards and Technology. "There is not new physics here, though, but a neat demonstration of physics."
The "ghosts" captured on camera weren't the kind you might first think; scientists didn't discover the wandering lost souls of our ancestors or those who were brutally killed in a massacre ( :P ). Rather, they were able to capture images of objects from photons that never actually encountered the objects pictured. The technology has been dubbed "ghost imaging."
Normal cameras work by capturing light that bounces back from an object. That's how optics work. So how can it be possible to capture an image of an object from light if the light never bounced off the object? The answer in short: quantum entanglement.
Entanglement is the strange instantaneous connection that has been proved to exist between certain particles even if they are separated by vast distances. How exactly the phenomenon works remains a mystery, but the fact that it works has been proven. [Read the whole interesting phenomenon here.]
"What they've done is a very clever trick. In some ways it is magical," explained quantum optics expert Paul Lett of the National Institute of Standards and Technology. "There is not new physics here, though, but a neat demonstration of physics."
keep visiting "hotgravity.blogspot.com" for more :)
No comments:
Post a Comment