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Category: mobile phones – Page 129

One of the obstacles for progress in the quest for a working quantum computer has been that the working devices that go into a quantum computer and perform the actual calculations, the qubits, have hitherto been made by universities and in small numbers. But in recent years, a pan-European collaboration, in partnership with French microelectronics leader CEA-Leti, has been exploring everyday transistors — that are present in billions in all our mobile phones — for their use as qubits.

The French company Leti makes giant wafers full of devices, and, after measuring, researchers at the Niels Bohr Institute, University of Copenhagen, have found these industrially produced devices to be suitable as a qubit platform capable of moving to the second dimension, a significant step for a working quantum computer. The result is now published in Nature Communications.

One of the key features of the devices is the two-dimensional array of quantum dot. Or more precisely, a two by two lattice of quantum dots. “What we have shown is that we can realize single electron control in every single one of these quantum dots. This is very important for the development of a qubit, because one of the possible ways of making qubits is to use the spin of a single electron. So reaching this goal of controlling the single electrons and doing it in a 2D array of quantum dots was very important for us,” says Fabio Ansaloni, former PhD student, now postdoc at center for Quantum Devices, NBI.

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From the best smartphone of the show to the best health-focused device, this is the cream of the crop when it comes to CES announcements and reveals. We’ve seen a tech-filled face mask that solves a lot of the problems of normal masks, as well as rollable smartphone displays.

Here are the best products we’ve seen at CES 2021, with 15 picks across several categories earning our accolades.

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Chipmakers often place orders with contract manufacturers instead of fabricating chips in-house. It takes time to manufacture semiconductors while reconfiguring lines to accommodate varying specifications, making it difficult to turn out different chips at the same time.

TOKYO — The auto industry is facing a severe lack of semiconductors amid rising use of the chips in other products, like smartphones and communication base stations.

This has forced Germany’s Volkswagen as well as Japanese makers like Honda and Nissan to reduce production.

Toyota Motor has decided to reduce production of its Tundra pickup truck at its plant in the U.S. state of Texas due to the semiconductor shortage. The company has not released details on the size or time frame regarding the production cut but is looking into whether the lack of semiconductors will affect other vehicles.

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All the clean technologies that we need to combat climate change – whether that’s wind turbines, solar panels or batteries, they’re all really, really mineral intensive.

Cornwall, 1864. A hot spring is discovered nearly 450m (1485ft) below ground in the Wheal Clifford, a copper mine just outside the mining town of Redruth. Glass bottles are immersed to their necks in its bubbling waters, carefully sealed and sent off for testing. The result is the discovery of so great a quantity of lithium – eight or 10 times as much per gallon as had been found in any hot spring previously analysed – that scientists suspect “it may prove of great commercial value”.

But 19th-Century England had little need for the element, and this 50C (122F) lithium-rich water continued steaming away in the dark for more than 150 years.

Fast forward to autumn 2020, and a site nearby the Wheal Clifford in Cornwall has been confirmed as having some of the world’s highest grades of lithium in geothermal waters. The commercial use for lithium in the 21st Century could not be clearer. It is found not only inside smart phones and laptops, but is now vital to the clean energy transition, for the batteries that power electric vehicles and store energy so renewable power can be released steadily and reliably.

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Despite the inherent challenges that voice-interaction may create, researchers at the Penn State College of Information Sciences and Technology recently found that deaf and hard-of-hearing users regularly use smart assistants like Amazon’s Alexa and Apple’s Siri in homes, workplaces and mobile devices.

The work highlights a clear need for more inclusive design, and presents an opportunity for deaf and hard-of-hearing users to have a more active role in the research and development of new systems, according to Johnna Blair, an IST doctoral student and member of the research team.

“As smart assistants become more common, are preloaded on every smartphone, and continue to provide benefits to the user beyond just the ease of voice activation, it’s important to understand how deaf and hard-of-hearing users have made smart assistants work for them and the realistic challenges they continue to face,” said Blair.

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On the first day of a popular psychology course in the 1970s at City College of New York, students were told the story of how a remote South American tribe that was never exposed to technology or even electricity reacted when they saw a cowboy program on TV for the first time. Panic-stricken viewers dodged out of the way as galloping horses disappeared at the edge of the screen, while others searched high and low to find the missing animals. These were old, bulky televisions with scrappy black-and-white displays. But to the tribe members, the images were chillingly real.

One wonders how those folks—not to mention modern-day tech geeks as well as the general public—would react to a portable projector that fits in the palm of your hand and is capable of displaying stunningly realistic 3D color . Chances are they’d be pretty impressed.

Looking Glass Factory, a Brooklyn-based tech firm, is set to offer an 8 holographic display called Portrait that will convert users’ favorite personal photos into lifelike holograms. No special equipment or skills are required. Users simply take regular 2-D photos with any device, ranging from sophisticated DSLR setups to low-end cellphones—even old family Polaroids should work—and send them to Looking Glass Factory’s cloud-based service.

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A team working with Roland Fischer, Professor of Inorganic and Metal-Organic Chemistry at the Technical University Munich (TUM) has developed a highly efficient supercapacitor. The basis of the energy storage device is a novel, powerful and also sustainable graphene hybrid material that has comparable performance data to currently utilized batteries.

Usually, energy storage is associated with batteries and accumulators that provide energy for electronic devices. However, in laptops, cameras, cellphones or vehicles, so-called supercapacitors are increasingly installed these days.

Unlike batteries they can quickly store large amounts of energy and put it out just as fast. If, for instance, a train brakes when entering the station, supercapacitors are storing the energy and provide it again when the train needs a lot of energy very quickly while starting up.

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