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Category: computing

IBM has been offering quantum computing as a cloud service since last year when it came out with a 5 qubit version of the advanced computers. Today, the company announced that it’s releasing 20-qubit quantum computers, quite a leap in just 18 months. A qubit is a single unit of quantum information.

The company also announced that IBM researchers had successfully built a 50 qubit prototype, which is the next milestone for quantum computing, but it’s unclear when we will see this commercially available.

While the earliest versions of IBM’s quantum computers were offered for free to build a community of users, and help educate people on programming and using these machines, today’s announcement is the first commercial offering. It will be available by the end of the year.

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A startup called Quantum Circuits plans to compete with the likes of IBM, Google, Microsoft, and Intel to bring quantum computing out of the lab and into the wider world. There’s one good reason to think it might be able to beat them all.

That’s because Quantum Circuits was founded by Robert Schoelkopf, a professor at Yale, whose work in many ways has helped kick-start this exciting new era of quantum advances.

Quantum computers exploit two strange features of quantum physics, entanglement and superposition, to process information in a fundamentally different way from traditional computers. The approach allows the power of such machines to scale dramatically with even just a few quantum bits, or qubits. Those racing to build practical quantum computers are nearing the point where quantum machines will be capable of doing things that no conventional machine could—an inflection point known as quantum supremacy.

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Aging cells periodically switch their chromatin state. The image illustrates the “on” and “off” patterns in individual cells. (credit: UC San Diego)

A team of scientists at the University of California San Diego led by biologist Nan Hao have combined engineering, computer science, and biology technologies to decode the molecular processes in cells that influence aging.

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IBM has announced a milestone in its race against Google and other big tech firms to build a powerful quantum computer.

Dario Gil, who leads IBM’s and artificial intelligence research division, said Friday that the company’s scientists have successfully built and measured a processor prototype with 50 , known as qubits.

Gil says it’s the first time any company has built a quantum computer at this scale.

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Transistors, those tiny electrical switches that process signals and data, are the brain power behind every electronic device – from laptops and smartphones to your digital thermostat. As they continue to shrink in size, computers have become smaller, more powerful, and more pervasive. However, as we look to build squishy, human-friendly machines that have the look and feel of soft natural organisms, we need to look beyond the rigid materials used to create electrical switches and circuits.

Mechanical engineers Carmel Majidi and James Wissman of the Soft Machines Lab at Carnegie Mellon University have been looking at new ways to create electronics that are not just digitally functional but also soft and deformable. Rather than making from rigid metals like copper or silver, they use a special metal alloy that is liquid at room temperature. This alloy, made by mixing indium and gallium, is a non-toxic alternative to mercury and can be infused in rubber to make circuits that are as soft and elastic as natural skin.

Teaming up with Michael Dickey at North Carolina State University, they recently discovered that electronics are not only useful for stretchable circuit wiring but can also be used to make . These fluidic transistors work by opening and closing the connection between two liquid metal droplets. When a voltage drop is applied in one direction, the droplets move towards each other and coalesce to form a metallic bridge for conducting electricity. When voltage is applied in a different direction, the droplets spontaneously break apart and turn the switch to open. By quickly alternating between an open and closed and open switch state with only a small amount of voltage, the researchers were able to mimic the properties of a conventional transistor.

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We wouldn’t blame you for thinking that Julius Horsthuis spent weeks designing and animating his sci-fi short, Fraktaal, using 3D software. But as the artist reveals, “It so happens that I’m a lazy animator.” So he instead relied on complex mathematical fractal patterns to automatically generate the alien worlds and cities visited in his film.

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Understanding the factors that control aging has been one of humanity’s endless pursuits, from the mystical fountain of youth to practical healthful regimens to prolong life expectancy.

A team of scientists at the University of California San Diego has helped decipher the dynamics that control how our cells age, and with it implications for extending human longevity. As described in a study published in the Proceedings of the National Academy of Sciences, a group led by biologist Nan Hao employed a combination of technologies in engineering, computer science and biology to analyze molecular processes that influence aging.

As cells age, damage in their DNA accumulates over time, leading to decay in normal functioning and eventually resulting in death. A natural biochemical process known as “chromatin silencing” helps protect DNA from damage. The silencing process converts specific regions of DNA from a loose, open state into a closed one, thus shielding DNA regions. Among the molecules that promote silencing is a family of proteins—broadly conserved from bacteria to humans—known as sirtuins. In recent years, chemical activators of sirtuins have received much attention and are being marketed as nutraceuticals to aid chromatin silencing in the hopes of slowing the aging process.

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