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Apr 28, 2016

Important effect observed in development of quantum storage

Posted by in categories: computing, mathematics, quantum physics

I read this article and it’s complaints about the fragile effects of data processing and storing information in a Quantum Computing platform. However, I suggest the writer to review the news released 2 weeks ago about the new Quantum Data Bus highlighted by PC World, GizMag, etc. It is about to go live in the near future. Also, another article to consider is today’s Science Daily articile on electron spin currents which highlights how this technique effectively processes information.


Rare-earth materials are prime candidates for storing quantum information, because the undesirable interaction with their environment is extremely weak. Consequently however, this lack of interaction implies a very small response to light, making it hard to read and write data. Leiden physicists have now observed a record-high Purcell effect, which enhances the material’s interaction with light. Publication on April 25 in Nature Photonics (“Multidimensional Purcell effect in an ytterbium-doped ring resonator”).

Ordinary computers perform calculations with bits—ones and zeros. Quantum computers on the other hand use qubits. These information units are a superposition of 0 and 1; they represent simultaneously a zero and a one. It enables quantum computers to process information in a totally different way, making them exponentially faster for certain tasks, like solving mathematical problems or decoding encryptions.

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Apr 28, 2016

The light stuff: A brand-new way to produce electron spin currents

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

With apologies to Isaac Asimov, the most exciting phase to hear in science isn’t “Eureka,” but “That’s funny…”

A “that’s funny” moment in a Colorado State University physics lab has led to a fundamental discovery that could play a key role in next-generation microelectronics.

Publishing in Nature Physics April 25, the scientists, led by Professor of Physics Mingzhong Wu in CSU’s College of Natural Sciences, are the first to demonstrate using non-polarized light to produce in a metal what’s called a spin voltage — a unit of power produced from the quantum spinning of an individual electron. Controlling electron spins for use in memory and logic applications is a relatively new field called spin electronics, or spintronics, and the subject of the 2007 Nobel Prize in Physics.

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Apr 28, 2016

Quantum computing, here we come: A qubit data bus may soon be possible

Posted by in categories: computing, quantum physics

Transporting information from one place to another is a key part of any computing platform, and now researchers have figured out a way to make it possible in the quantum world.

To prove their point, they demonstrated what’s known as perfect state transfer on a photonic qubit that’s entangled with another qubit at a different location.

In traditional computing, numbers are represented by either 0s or 1s. Quantum computing relies on atomic-scale quantum bits, or “qubits,” that can be simultaneously 0 and 1—a state known as superposition. Quantum bits can also become “entangled” so that they are dependent on one another even across distances.

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Apr 28, 2016

Qubiz aims to make quantum technology practical

Posted by in categories: business, engineering, quantum physics

Excellent news!!!!!


The Quantum Innovation Center or Qubiz has been launched in Copenhagen with the goal of translating quantum physics into practical quantum technology. The Danish project involves the Niels Bohr Institute at the University of Copenhagen, the Technical University of Denmark DTU, and Aarhus University, along with 18 industrial partners. Qubiz will be building on the very strong Danish research platform within quantum technology, a platform that has its origin in Niels Bohr’s pioneering work 100 years ago.

The CEO for the new Center is Søren Isaksen, who previously served as the CTO of the NKT Group and is a member and chairmen of various research councils. In addition to leading the center, his job will be to reach out to Danish and foreign companies and, with the researchers, to help find out where there is potential for starting new businesses. A 2-year seed funding grant of 11M EUR from the Innovation Fund Denmark enables the hiring of new employees with business and engineering backgrounds, as well as researchers.

According to Isaksen, the Center will engage with existing businesses, Danish as well as international companies, to develop new products and lay the foundation for new businesses. On April 15, Qubiz held a kick-off event that included seven elevator-pitches presenting potential startups—two of these have now being established and more are on the way.

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Apr 28, 2016

Entanglement Made Simple

Posted by in category: quantum physics

Quantum entanglement is thought to be one of the trickiest concepts in science, but the core issues are simple. And once understood, entanglement opens up a richer understanding of concepts such as the “many worlds” of quantum theory.

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Apr 28, 2016

The vision for the future ground vehicle looks a lot like a dune buggy

Posted by in categories: futurism, military

Cool


The Army and Marine Corps’ next-generation ground combat vehicle could be designed to avoid threats rather than withstand them.

To that end, eight organizations received contracts from the Defense Advanced Research Projects Agency to join the Ground X-Vehicle Technology program, where DARPA intends to create a nimble, go-anywhere conveyance that will be hard for enemies to find or catch.

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Apr 28, 2016

The secretive, billionaire-backed plans to harness fusion

Posted by in categories: energy, government

Unencumbered by red tape, these venture-backed companies believe that they can find a faster, cheaper way to fusion than government-sponsored projects, and some very influential people agree: besides Bezos, Microsoft cofounder Paul Allen and PayPal cofounder Peter Thiel are also backing firms at the forefront of fusion development.


The founders of Amazon and Microsoft are putting their fortunes into little-known fusion energy companies. Jonathan Frochtzwajg digs into a story that has strange parallels with fiction.

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Apr 28, 2016

The Oceans Are Running Low on Oxygen

Posted by in categories: climatology, sustainability

File this under definitely not good: global warming is depleting the oceans of oxygen. You know, that little molecule that we, along with all other complex life forms, require in order to breathe and therefore live.

The reason is simple. According to basic thermodynamics, cold water can hold more dissolved gases than warm water. As our ever-warming atmosphere heats the surface of the ocean, the oxygen content starts to fall. Also, as water warms, it expands and gets lighter. This makes it less likely to sink, which in turn reduces the transport of oxygen from the atmosphere into the deep ocean.

All of this is well-established science. It’s also understood that the oxygen content of the ocean varies all the time due to changes in weather, seasons, latitude, and longer-term climate patterns like El Niño. But a study published this week in Global Biogeochemical Cycles is the first to show that the oxygen content of the world’s oceans is now falling thanks to climate change.

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Apr 28, 2016

Bendable Smartphones

Posted by in categories: materials, mobile phones

China is making bendable smartphones with a graphene display.

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Apr 28, 2016

Italianos criam telha que já vem com placas solares

Posted by in category: futurism

A invenção é uma alternativa aos painéis fotovoltaicos tradicionais, que são grandes e pesados.

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As empresas italianas Area Industrie Ceramiche e REM desenvolveram a Tegola Solare, uma telha cer mica com células fotovoltaicas integradas. É uma alternativa sustentável que não atrapalha a estética original das telhas, como acontece muitas vezes com os painéis fotovoltaicos tradicionais, que são grandes e pesados.

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