Archive for the ‘computing’ category: Page 515

May 16, 2018

Almost everything you know about e-waste is wrong

Posted by in categories: computing, economics, health

Many of us think we know what electronic waste is because we wonder what to do with devices we no longer want or need.

It’s the old cellphone and its charger stuffed in the drawer.

It’s that old laptop, monitor or printer packed behind the door or in the basement.

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May 15, 2018

Brain Computer Interface Virtual Reality with EEG signals

Posted by in categories: computing, health, neuroscience, virtual reality

By combining virtual reality with a brain-based computer interface, researchers hope to create more immersive, lifelike experiences for gaming and health care applications.

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May 14, 2018

Deeper understanding of quantum chaos may be the key to quantum computers

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

New research gives insight into a recent experiment that was able to manipulate an unprecedented number of atoms through a quantum simulator. This new theory could provide another step on the path to creating the elusive quantum computers.

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May 14, 2018

Neuroscientists see a new way to manipulate minds

Posted by in categories: computing, economics, health, neuroscience

Is it possible to exercise the same kind of control over the most complex network we know of: the human brain?

Rewriting Life.

How network neuroscience is creating a new era of mind control.

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May 14, 2018

What is the Singularity?

Posted by in categories: computing, internet, physics, singularity, transhumanism, virtual reality

Not everyone is convinced. Critics point out that one of the points of exponential growth is that it cannot carry on forever. After a 50-year run, Moore’s Law is stuttering. Singularitarians retort that the laws of physics define a limit to how much computation you can cram into a given amount of matter, and that humans are nowhere near that limit. Even if Moore’s Law slows, that merely postpones the great day rather than preventing it. Others say the Singularity is just reli…gion in new clothes, reheated millenarianism with transistors and Wi-Fi instead of beards and thunderbolts. (One early proponent of Singularitarian and transhumanist ideas was Nikolai Federov, a Russian philosopher born in 1829 who was interested in resurrecting the dead through scientific means rather than divine ones.) And those virtual-reality utopias do look an awful lot like heaven. Perhaps the best way to summarise the Singularity comes from the title of a book published in 2012: the Rapture of the Nerds.

And will it lead to the extermination of all humans?

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May 11, 2018

Toward tailoring Majorana bound states in artificially constructed magnetic atom chains on elemental superconductors

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

Realizing Majorana bound states (MBS) in condensed matter systems is a key challenge on the way toward topological quantum computing. As a promising platform, one-dimensional magnetic chains on conventional superconductors were theoretically predicted to host MBS at the chain ends. We demonstrate a novel approach to design of model-type atomic-scale systems for studying MBS using single-atom manipulation techniques. Our artificially constructed atomic Fe chains on a Re surface exhibit spin spiral states and a remarkable enhancement of the local density of states at zero energy being strongly localized at the chain ends. Moreover, the zero-energy modes at the chain ends are shown to emerge and become stabilized with increasing chain length. Tight-binding model calculations based on parameters obtained from ab initio calculations corroborate that the system resides in the topological phase. Our work opens new pathways to design MBS in atomic-scale hybrid structures as a basis for fault-tolerant topological quantum computing.

Majorana fermions —particles being their own antiparticles—have recently attracted renewed interest in various fields of physics. In condensed matter systems, Majorana bound states (MBS) with a non-Abelian quantum exchange statistics have been proposed as a key element for topological quantum computing (2–4). One of the most promising platforms to realize MBS are one-dimensional (1D) helical spin systems being proximity-coupled to a conventional s-wave superconductor (5–9). In such a surface-confined system, the MBS can directly be investigated by local probe techniques such as scanning tunneling microscopy/spectroscopy (STM/STS). Previously reported experiments aiming at the direct visualization and probing of the MBS have focused on self-assembled magnetic chains on superconducting Pb substrates (10–15).

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May 11, 2018

Data storage on DNA: Where Silicon Valley meets biotech

Posted by in categories: computing, food, genetics, media & arts

In the heart of San Francisco’s Mission Bay neighborhood, which not long ago was dirt lots and warehouses, Emily Leproust is cooking up what she — and $209 million worth of investor cash — believes is the future of DNA production.

Leproust is CEO of Twist Bioscience, a 5-year-old biotech company striving to make the production of synthetic DNA — which is used in fragrances, genetically modified foods and pharmaceutical drugs — cheaper, faster and smaller.

The same lab-manufactured DNA, Leproust hopes, could also transform the way data, from music to medical records, is stored.

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May 10, 2018

Microsoft predicts five-year wait for quantum computing in Azure

Posted by in categories: computing, quantum physics

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May 10, 2018

Light could make semiconductor computers a million times faster or even go quantum

Posted by in categories: computing, quantum physics

A technique to manipulate electrons with light could bring quantum computing up to room temperature.

A team of researchers in Germany and at the University of Michigan have demonstrated how can shift electrons between two different , the classic 1 and 0, in a thin sheet of semiconductor.

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May 9, 2018

How ‘Valleytronics’ Could Help Keep Moore’s Law Alive

Posted by in category: computing

To sustain the growth of the power of microchips and keep Moore’s Law going, semiconductor engineers are exploring the path of “valleytronics”.

Moore’s Law may be coming to an end due to the physical limitations of silicone and other elements, but a research team may have found a solution: valleytronics.

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