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Archive for the ‘quantum physics’ category: Page 677

Apr 3, 2018

From the quantum level to the car battery

Posted by in categories: economics, information science, quantum physics, robotics/AI, transportation

New developments require new materials. Until recently, these have been developed mostly by tedious experiments in the laboratory. Researchers at the Fraunhofer Institute for Algorithms and Scientific Computing SCAI in Sankt Augustin are now significantly shortening this time-consuming and cost-intensive process with their “Virtual Material Design” approach and the specially developed Tremolo-X software. By combining multi-scale models, data analysis and machine learning, it is possible to develop improved materials much more quickly. At the Hanover Trade Fair from April 23 to 27, 2018, Fraunhofer will be demonstrating how the virtual material design of the future looks.

In almost every industry, new materials are needed for new developments. Let’s take the automotive industry: while an automobile used to consist of just a handful of materials, modern cars are assembled from thousands of different materials – and demand is increasing. Whether it’s making a car lighter, getting better fuel economy or developing electric motor batteries, every new development requires finding or developing the material that has exactly the right properties. The search for the right material has often been like a guessing game, though. The candidates have usually been selected from huge material databases and then tested. Although these databases provide insight into specific performance characteristics, they usually do not go far enough into depth to allow meaningful judgments about whether a material has exactly the desired properties. To find that out, numerous laboratory tests have to be performed.

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Apr 2, 2018

Finding order in disorder demonstrates a new state of matter

Posted by in categories: materials, quantum physics

Physicists have identified a new state of matter whose structural order operates by rules more aligned with quantum mechanics than standard thermodynamic theory. In a classical material called artificial spin ice, which in certain phases appears disordered, the material is actually ordered, but in a “topological” form.

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Apr 2, 2018

Did Stephen Wolfram’s Knowledge Engine Just Become a Quantum Neural Blockchain AI?

Posted by in categories: bitcoin, quantum physics, robotics/AI

Today’s leading buzzwords seem to describe very separate concepts, but it turns out that they have some amazing commonalities.

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Mar 29, 2018

Microsoft inches closer to commercially-viable quantum computing

Posted by in categories: computing, particle physics, quantum physics

Microsoft’s quest to create a powerful quantum computer comes closer to reality with the help of an elementary particle.

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Mar 29, 2018

Are there extra dimensions lurking at the quantum scale?

Posted by in categories: nanotechnology, quantum physics

Some theories suggest there could be many more dimensions that we’re unaware of, mostly because they’re imperceptibly tiny. Now researchers have taken the search for extra dimensions down to the nanoscale, using a neutron beam to study gravitational forces more precisely than ever before.

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Mar 27, 2018

The future of photonics using quantum dots

Posted by in categories: computing, finance, quantum physics

Fiber-optic cables package everything from financial data to cat videos into light, but when the signal arrives at your local data center, it runs into a silicon bottleneck. Instead of light, computers run on electrons moving through silicon-based chips, which are less efficient than photonics. To break through, scientists have been developing lasers that work on silicon. Researchers now write that the future of silicon-based lasers may be in quantum dots.

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Mar 27, 2018

Future Focus: Quantum Computing in Next Generation AI Research

Posted by in categories: quantum physics, robotics/AI

Dario Gil shares the future of quantum computing.

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Mar 27, 2018

Putting quantum scientists in the driver’s seat

Posted by in categories: computing, quantum physics

Scientists at the Department of Energy’s Oak Ridge National Laboratory are conducting fundamental physics research that will lead to more control over mercurial quantum systems and materials. Their studies will enable advancements in quantum computing, sensing, simulation, and materials development.

The researchers’ experimental results were recently published in Physical Review B Rapid Communication and Optics Letters.

Quantum information is considered fragile because it can be lost when the system in which it is encoded interacts with its environment, a process called dissipation. Scientists with ORNL’s Computing and Computational Sciences and Physical Sciences directorates and Vanderbilt University have collaborated to develop methods that will help them control—or drive—the “leaky,” dissipative behavior inherent in .

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Mar 26, 2018

DARPA Is Researching Time Crystals, And Their Reasons Are ‘Classified’

Posted by in categories: military, neuroscience, quantum physics

The US military likes to stay at the forefront of the cutting edge of science — most recently investigating ways they can ‘hack’ the human brain and body to make it die slower, and learn faste r.

But in an unexpected twist, it turns out they’re also interested in pushing the limits of quantum mechanics. The Defence Advanced Research Projects Agency (DARPA) has announced it’s funding research into one of the strangest scientific breakthroughs in recent memory — time crystals.

In case you missed it, time crystals made headlines last year when scientists finally made the bizarre objects in the lab, four years after they were first proposed.

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Mar 23, 2018

Scientists unveil high-sensitivity 3D technique using single-atom measurements

Posted by in categories: particle physics, quantum physics

Researchers at Griffith University working with Australia’s Commonwealth Scientific and Industrial Research Organisation (CSIRO) have unveiled a stunningly accurate technique for scientific measurements which uses a single atom as the sensor, with sensitivity down to 100 zeptoNewtons.

Using highly miniaturised segmented-style Fresnel lenses — the same design used in lighthouses for more than a century — which enable exceptionally high-quality images of a single atom, the scientists have been able to detect position displacements with nanometre precision in three dimensions.

“Our atom is missing one electron, so it’s very sensitive to electrical fields. By measuring the displacement, we’ve built a very sensitive tool for measuring electrical forces.” Dr Erik Streed, of the Centre for Quantum Dynamics, explained.

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