quantum computing

Serge Haroche of France and David J. Wineland of the United States independently developed methods for measuring and manipulating individual particles while preserving their quantum-mechanical nature. The Nobel citation said such advancements, which allow researchers to directly observe individual quantum particles without destroying them, were previously thought unattainable.

"For single particles of light or matter the laws of classical physics cease to apply … Read more

If only we were quantum states, we'd be playing Kirk and Scotty, popping around the universe until the inevitable failure in the transporter circuits.

European and Canadian scientists are pushing the envelope on quantum teleportation after having succeeded in beaming quantum states across some 90 miles in the Canary Islands.

The laser-locked telescopes on the islands of La Palma and Tenerife served as transporter rooms, teleporting information about the state of a pair of "entangled" particles.

The entanglement links the particles such that a change in one is registered in the other despite great distances between them. … Read more

Physicists have long sought to use the bizarre workings of quantum mechanics to make mind-boggling leaps in computing power. And they appear to actually be making progress.

Researchers from Harvard University and the Weizmann Institude of Science in Israel today published a paper describing a technique for two quantum bits, or qubits, to operate in a predictable and coordinated way, a small step toward a working quantum computer.

In a separate effort, researchers at the Max Planck Institute of Quantum Optics today claimed to have made a breakthrough by making a prototype of a quantum communications network. Both groups say … Read more

Links from Tuesday's episode of Loaded:

Scientists at IBM say they have made a quantum computing breakthrough that demonstrates that a full-scale quantum computer is not only possible but is within reasonable reach.

In an announcement being made today at the American Physical Society in Boston, Matthias Steffen, manager of IBM's experimental quantum computing group, will unveil the research that has led his team to conclude they are the brink of developing scalable technology that could far outstrip what even the strongest supercomputers can do today.

A traditional bit has only two states--zero and one. But for its quantum computing efforts, IBM has decided to … Read more

Researchers are getting down to the atomic level in the pursuit of smaller and more powerful computers.

The University of New South Wales in Australia today announced it has made a single-atom transistor using a repeatable method, a development that could lead to computing devices that use these tiny building blocks.

About two years ago, a team of researchers from the Helsinki University of Technology, the University of New South Wales, and the University of Melbourne in Australia announced the creation of a single-atom transistor designed around a single phosphorus atom in silicon.

Now a new paper published in the … Read more

SAN FRANCISCO--I hope Intel warned the Luddites and pessimists away at the door, because the chipmaker had a lot of bullish statements Thursday about its belief that computers will become smarter than humans.

At the Intel Developer Forum here, Intel Chief Technology Officer Justin Rattner showed off a number of technologies in computing, robotics, and communication that he cited as evidence that Ray Kurzweil's concept of "singularity," when machine intelligence surpasses human intelligence, is impending. Demonstrations spotlighted the wireless transmission of electrical power, dextrous robots with new sensory abilities, a direct interface to the brain, programmable materials that can be used for shape-shifting devices such as resizable cell phones, and silicon photonics that enables chips to communicate with photons rather than electrons.

"We're making steady progress toward Ray Kurtzweil's singularity," Rattner said.

Intel of course remains at its heart a chipmaker, and Rattner began with a brief tour, assisted by Mike Garner, senior technologist for Intel's emerging materials group, of various successors to the current complimentary metal oxide semiconductor (CMOS) process used to make processors. Future ideas that pack ever more computing capacity into a given volume include spintronics, quantum computing, carbon nanotubes.

Long live CMOS And CMOS itself still has some legs, Rattner said, with recent progress shrinking the size of circuitry elements to their current size of 45 nanometers, or billionths of a meter.

"When will silicon run out of gas? Can it fuel this exponential growth for 40 years to come?" Rattner asked. "We got very close to the limit at 45 nanometers. We were able to innovate our way out of what seemed an unsolvable problem...We've got some challenges ahead of us. It looks like 32 nanometers is on track, but you go beyond that and it looks a little bit iffy."

… Read more

D-Wave Systems has received $17 million to see if it's possible to compute complex equations by studying the behavior of molecules.

International Investment and Underwriting of Dublin led the round, which was the third round of funding for the Vancouver-based company. Draper Fisher Jurvetson (which always seems to be involved in wacky sorts of companies), GrowthWorks Capital, BDC Venture Capital, Harris & Harris Group, and British Columbia Investment Management also participated. Previously, the company raised more than $30 million.

Quantum computers, which researchers have experimented with for years but which haven't yet existed outside of the laboratory, are … Read more