UK researchers said they were getting close earlier this year, but in one brilliant fraction of a second a gaggle of Yalies beat those limeys to the punch, with a team led by Robert Schoelkopf, a professor of Applied Physics at Yale, creating what's being hailed as the first quantum processor to actually perform calculations. It's composed of aluminum atoms grouped together to form two quantum bits, communicating over an unimaginatively named named quantum bus that enables one to change the (wait for it) quantum state of the other. This first qubit shifter was able to maintain state for 1,000 times longer than any previous qubit ever produced -- but since its predecessors could only manage a nanosecond's worth of cognition we're still only talking a microsecond here. In other words: there's still a long way to go before you'll be slotting one of these into your gaming rig.

Many who grew up beneath a warm, inefficient incandescent or halogen glow are having a hard time coming to grips with the stale, stiff, efficient illumination provided by CFL or LED bulbs. Two companies, Nexxus Lighting and QD Vision, have paired up to change that, with the former providing an 8 watt (75 watt equivalent) LED bulb, and the latter providing a thin film of quantum dots that can precisely control its color. The dots are microscopic particles that filter light into different colors depending on their size, from red to blue as the dots get smaller -- some only 10 atoms in diameter. The first bulbs are due later this year, and while no word on price is given, Nexxus's current LED bulb costs $100 on its own and surely that layer of dots won't come cheap. Also, no word on whether you'll need to use a Handlink to turn the thing on and off.

[Via Physorg]

It's been awhile since we've heard of any major advancements in the world of quantum cryptography, but at long last the silence is being broken by a squad of jubilant Austrian physicists. As the story goes, a team from Austria's Institute for Quantum Optics and Quantum Information (IQOQI) managed to send "entangled photons" 90 miles between the Spanish islands of Las Palmas and the Balearics. Calling the ephemeral test successful, the crew has boldly asserted that it's now feasible to send "this kind of unbreakable encrypted communication through space using satellites." Funny -- last we remember, quantum cryptography still had a few kinks to work through here beneath the stratosphere.

You know, at some point we're going to grow tired of just getting closer and demand that we arrive, but thankfully for a smattering of UK-based researchers, we're not yet to that point. Reportedly, brainiacs from Edinburgh and Manchester University have created a molecular machine that could be used to develop quantum computers for making "intricate calculations" far more quickly than current supercomputers. Essentially, these gurus relied on molecular scale technology instead of silicon chips; more specifically, they achieved the so-called breakthrough by "combining tiny magnets with molecular machines that can shuttle between two locations without the use of external force." Not surprisingly, there's still more work to be done, with Professor David Leigh of Edinburgh University noting that "the major challenges we face now are to bring many of these qubits together to build a device that could perform calculations, and to discover how to communicate between them." In other words, check back in 2012.

It wouldn't be as much of an icebreaker as saying you have a bionic eye, but University of Colorado Hospital's Jeffrey Olson has developed a procedure for improving eyesight that involves injecting nano-sized semiconductors called "quantum dots" into the retina. These dots stimulate electrical activity in working parts of the eye and slows degradation in the rest, and early tests on rats have been shown to successfully increase perception. Although intended for those with damaged vision, this might be just the thing for watching your neighbors' HBO from the comforts of your windowsill -- hey, we won't judge you.

[Via New Scientist]

Call us devilish, but we just can't help but love these types of stories. Here we have yet another overly confident group of researchers grossly underestimating the collective power of the hacking underground, as gurus from all across Europe have joined together to announce "the first commercial communication network using unbreakable encryption based on quantum cryptography." Interestingly enough, quantum cryptography has already been cracked in a kinda-sorta way, but that's not stopping these folks from pushing this claim hard to government agencies, financial institutions and companies with distributed subsidiaries. We've no doubt this stuff is pretty secure, but the last time we heard someone utter a claim similar to this, we saw him uncomfortably chowing down on those very words merely months later.

[Via Physorg]

In reality, quite a bit of time has passed since we've heard of the next great leap in the (seemingly) never-ending journey towards quantum computing, but we're incredibly relieved to learn that at least someone is still out there, somewhere, pressing on. An international team of researchers have reportedly shown that they can "control the quantum state of a single electron in a silicon transistor, even putting the electron in two places at once." Essentially, the team is using tiny semiconductor transistors to "control the state of a quantum system," but there is still a long ways to go before any of this is meaningful. The crew managed to discover a few things by chance, yet to create a quantum computer, they would need to "position atoms of arsenic (or some other material) in the transistors more reliably." For those of you way too geeked out, fret not -- we'll let you know when all of this technobabble finally amounts to something.

[Thanks, Chris]

It looks like quantum computing could now be one step closer to some form of practicality, as a team of researchers from the University of Queensland have announced that they've created a light-based quantum circuit that's capable of performing basic calculations. According to ZDNET Australia, that was done by using a laser to send "entangled" photons through a linear optical circuit, which allowed them to create a circuit consisting of four "qubits," (or quantum bits, pictured at right), which in turn allowed them to calculate the prime roots of fifteen, three and five. Somewhat interestingly, the university's research is funded in part by none other than DARPA, which the researchers themselves admit may be due to the technology's potential for cracking otherwise uncrackable codes.

[Via Slashdot, image courtesy of Wikimedia Commons]

Quantum computing isn't exactly synonymous with mainstream (yet), but a team of engineers at the University at Buffalo are looking to overcome some of the most prominent hurdles "that have prevented progress toward spintronics and spin-based quantum computing." Apparently, these gurus have conjured up a semiconductor that "provides a novel way to trap, detect and manipulate electron spin," the latter of which is the most notable. Essentially, the UB group's scheme could open up "new paradigms of nanoelectronics," and it manages to stand out from prior efforts by requiring fewer logic gates and promising to operate in much warmer (20-degrees Kelvin versus 1-degree Kelvin) conditions. Now that they've figured out how to dictate single spin, the subsequent step would be to "trap and detect two or more spins that can communicate with each other" -- you know, a vital precondition for quantum computing.

[Thanks, Jordan]

One of the many challenges facing quantum computing is finding a practical material from which to process the quantum information -- the material must not be so exotic such that it becomes too prohibitive and expensive to use for mass calculations. That's why a recently discovered hidden magnetic "quantum order" in ceramic has scientists in such a tizzy. By heating or doping the material with a variety of impurities, scientists from the London Center for Nanotechnology have found a way to propagate magnetic excitations over long chains of atoms in the otherwise magnetically disordered material. Armed then, with the ability to break the chains into independent sub-chains, each with it's own hidden order, scientists have taken the first step towards engineering spin-based quantum states from ceramics. Right, the quantum analogy to those good ol' 1 and 0 state changes used by today's not-so-super computers.

[Thanks, Scott S.]

We've seen what (little) a quantum computer can do, but a pair of curious scientists flipped the equation around and sent a humdrum PC to do a supercomputer's work. Professor Peter Drummond and Dr. Piotr Deuar were able to "successfully simulate a collision of two laser beams from an atom laser using an everyday desktop computer," which would typically only be attempted on a substantially more powerful machine. Notably, the achievement wasn't entirely without flaw, as the purported randomness in the testing eventually "swamped everything" and forced the simulation to be halted in order to gather any useful data whatsoever. Unfortunately, we're all left to wonder exactly what kind of machine was used to chew through such grueling calculations (Compubeaver, perhaps?), but feel free to throw out your suggestions below.

[Via Physorg, image courtesy of ACQAO]

The quantum computing train keeps rumblin' on as researchers at NEC have managed to develop a "tunable coupler," enabling them to wire up what they're saying is the world's first quantum "circuit." The coupler connects two qubits, quantum bits that can be set to either 1, 0, or "both" (that's where the power of quantum computing lies), but unlike previous coupling attempts, does not significantly shorten the useable lifetime of the qubit. NEC says the microwave-controlled circuit is theoretically capable of scaling up to a system comprising enough qubits to outperform most modern supercomputers, but further development in preserving qubit lifetimes is necessary to make the tech viable. Better hurry up, guys -- D-Wave is already solving Sudoku.

It's always only a matter of time. A little less than a year after the first quantum cryptographic network was demoed, a group of researchers at MIT have announced a working implementation of a hack that's been around in theory since 1998 but never implemented. Skirting around ol' Wernie Heisenberg and that Principle of his, the team exploited quantum entanglement to read the encryption keys encoded in photon polarizations from their momentums, avoiding detection by either end -- in other words, doing what was once thought impossible by cryptographers. The system isn't perfect, however -- in this early incarnation it can only nab 40% of transmitted data before giving itself away, and more importantly, it requires the invention of a "quantum non-demolition box" before the attacker can be anywhere but the same room as the receiver, since right now both attacker and receiver need to be using the same photon detector. Sounds like that might put a damper on that whole "undetectable" thing. Still, the researchers sound upbeat -- they're saying the work proves that no secret is truly safe. We're just wondering if they're pushing MIT to rename their department SETEC ASTRONOMY.

Attosecond technology -- tech that enables light pulses to be fired every billion-billionth of a second -- could be the key to making computers that run on light. A team of physicists at the University of Bath in the UK are to carry out research into this high frequency technology which could potentially bust through the upper limit of Moore's Law. The ultimate aim of the research is to find a way of manipulating light waveforms into different shapes, and expanding the area known as "photonics" (in other words, getting light to usefully convey information). Currently it's only possible to create lightwaves in a conventional sine form: the hope is to create waves that are square or triangular, which have far greater value for communication within a computer. The fine details of the research project go way above our heads, but it's safe to say that it involves a bunch of crystals, fibres, and friggin' lasers (minus the sharks). Right now attosecond tech isn't the only platform that looks to light to solve problems like Moore's Law's limit: check out previous posts where we look at condensing light for super storage, using lasers to boost computing power, and slowing light to create photonic computers. From where we're sitting, the future of computing is full of light: whether or not that light is full of hot air is still unconfirmed.

Italians have been getting a taste of that sweet over-the-air digital TV since last year, with tiny phone screens being their primary and possibly sole method of content intake. Well that won't be the case for too much longer, as mobile carrier 3 has announced a partnership with manufacturer Quantum that will bring a dedicated, 4.3-inch portable DVB-H device to the TV-mad public. Called the QTM 1000, this PMP will be able to pull down 12 live stations including Sky, RIA, and Mediaset, and is said to function as a navigation unit as well (details on that aspect of its functionality are slim to none, however). Also no word so far on pricing, but perhaps we'll learn more as the scheduled release window of "this spring" gets closer.

[Via PMP Today]