Diamonds Aren’t Forever: First Quantum Computer Bridge to Link Quantum Computers Together
“People have already built small quantum computers,” says Sandia researcher Ryan Camacho. “Maybe the first useful one won’t be a single giant quantum computer but a connected cluster of small ones.”
Distributing quantum information on a bridge, or network, could also enable novel forms of quantum sensing, since quantum correlations allow all the atoms in the network to behave as though they were one single atom.
This stylized illustration of a quantum bridge shows an array of holes (purple) etched in diamond with two silicon atoms (yellow) placed between the holes.
Though the silicon atoms are embedded in a solid, they behave as though floating in a gas, and therefore their electrons’ response to quantum stimuli are not clouded by unwanted interactions with other matter.
“What we’ve done is implant the silicon atoms exactly where we want them,” said Camacho. “We can create thousands of implanted locations, which all yield working quantum devices, because we plant the atoms well below the surface of the substrate and anneal them in place. Before this, researchers had to search for emitter atoms among about 1,000 randomly occurring defects — that is, non-carbon atoms — in a diamond substrate of a few microns to find even one that emitted strongly enough to be useful at the single photon level.”
Once the silicon atoms are settled in the diamond substrate, laser-generated photons bump silicon electrons into their next higher atomic energy state; when the electrons return to the lower energy state, because all things seek the lowest possible energy level, they spit out quantized photons that carry information through their frequency, intensity and the polarization of their wave.
“Harvard researchers performed that experiment, as well as the optical and quantum measurements,” said Camacho. “We did the novel device fabrication and came up with a clever way to count exactly how many ions are implanted into the diamond substrate.”
“Pretty cool, huh?” said Camacho.
The journal Science thought so. The work is published in the current issue.
Contacts and sources:
Sandia National Laboratories
Source: http://www.ineffableisland.com/2016/10/diamonds-arent-forever-first-quantum.html
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Anthony Patch came out with theory on my show,wellb4 they released this info. but its nice to see them verify.
Richie From Boston
I came with theories that explain 100% everything in physics starting with elementary particles and ending with ToE. I wonder when the rest will give up the deception and accept the true physics.