The vibrational states of two spatially separated, millimeter-sized diamonds are entangled at room temperature by beaming laser light at them (green). The researchers verified this entanglement by studying the subsequent laser pulses beamed through the system. CREDIT: Science/AAAS
Yes, we call this a "joint checking account." It's a bad thing.
Wow! Bell’s inequality in action!
>>It’s a strange effect where one object gets connected to another so that even if they are separated by large distances, an action performed on one will affect the other.<<
Obviously, these scientists never observed my ex-wife and a late alimony check.
(It's an old sci-fi concept for using a phenomenon with no measurable propagation rate as a communications medium over interstellar distances.)
Interesting...
I like this, might make really private communication possible.
The word “diamonds” lured me into a smart people thread!
But this is actually very cool and exciting.
“If the two diamonds weren’t entangled, the researchers would expect each detector to register a changed laser beam about 50 percent of the time... Instead, because the two diamonds were linked, they found that one detector measured the change every time, and the other detector never fired. The two diamonds, it seemed, were so connected they reacted as a single entity, rather than two individual objects.”
I really think that is a big leap of logic. I also think it’s a big leap of logic to say that the diamonds are “entangled” just because they sent a laser thru the diamonds at the same time. But I have to admit I am somewhat skeptical of quantum theory in general. The scientists who study this are always willing to assume everything they see is a result of quantum effects.
I guess the obvious question is what else could explain the fact that one sensor fires all the time? I think there are a lot of possible explanations that have nothing to do with quantum mechanics. For example, it might be that there is a defect in one of the diamonds that causes it to absorb the photon before the other has a chance to do so. Or it could be that one of the sensors is more sensitive.
Yeah but what about the di-lithium crystals for the matter/anti-matter pods?
Bookmark, thanks
Col 1: 16-17 For by him all things were created: things in heaven and on earth, visible and invisible, whether thrones or powers or rulers or authorities; all things were created by him and for him. He is before all things, and in him all things hold together.
ANSIBLE! INSTANT COMMUNICATION ACROSS LONG DISTANCES!!!!
I love Orson Scott Card. Billions should be thrown at this to replicate it.
This bothers me a bit. Are the two diamonds not reacting as a single system just because the split laser beam reaches them at exactly the same time? The experiment seems to be saying more about the laser than the diamonds. What if one of the diamonds was moved a cm. further sway so the laser hit it slightly later? Would the synchronized behavior then break down? I believe that other entanglement experiments have separated the members or isolated one and still seen entanglement. But I'm not so sure this one is an authentic example of the phenomenon. Or maybe the article's description is over-simplified and my misgivings were accounted for in the experimental design.
So that is what has been pulling my eyelids down.
If progress continues, I can imagine what this will do for computing and communications in the next few decades.
bflr
Yeah, I have heard of this.....it’s called marriage.
Bflr
that looks like my screen saver....with the squiggles moving..
We’re all in this together!
