Addressable quantum dot qubit with fault-tolerant control-fidelity

Exciting progress towards spin-based quantum computing has recently been made with qubits realized using nitrogen-vacancy centres in diamond and phosphorus atoms in silicon. For example, long coherence times were made possible by the presence of spin-free isotopes of carbon and silicon. However, despite promising single-atom nanotechnologies6, there remain substantial challenges in coupling such qubits and …

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3D Printed Quantum Dot Light-Emitting Diodes

Nanoletters – 3D Printed Quantum Dot Light-Emitting Diodes Developing the ability to 3D print various classes of materials possessing distinct properties could enable the freeform generation of active electronics in unique functional, interwoven architectures. Achieving seamless integration of diverse materials with 3D printing is a significant challenge that requires overcoming discrepancies in material properties in …

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Future of Work – Limo drivers, Limo Passengers and Business Jet Passengers

Those who work at Uber typically make far more money than those who drive for Uber. The benefits and actual jobs have a huge difference Also, the future prospects for the category of work is an important matter for career and life planning. Prospects will be worse and worse being told by computers what to …

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John Bongaarts at the Population Council thinks Climate Change has a good chance of limiting human Population but he is wrong

According to the new analysis by researchers at the United Nations and several academic institutions, there is an 80 percent chance that the world’s population, now 7.2 billion, won’t stop at nine billion in 2050, but will instead be between 9.6 billion and 12.3 billion by 2100. The researchers increased their estimates after noting persistent …

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DARPA Jetpack developed at Arizona State to help every soldier run 4 minute miles but currently provides 5-12% assist

What if every soldier could run a four-minute mile? That’s the goal behind 4MM, or 4 Minute Mile, a student project to create a wearable jetpack that enhances speed and agility. Working with the Defense Advanced Research Projects Agency and a faculty mentor, Jason Kerestes is the mastermind behind 4MM. He built a prototype of …

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Europe tries to avoid or reduce recession will go for another round of quantitative easing and China’s August number look weak so an interest rate cut may come there

The euro zone’s fragile economic recovery came to a halt in the second quarter, in marked contrast to the United States, where the economy grew robustly. Like many of its neighburs struggling to rebound from the debt crisis, Italy slipped into recession for the third time since 2008. An inflation rate of just 0.3 percent, …

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NASA research shows Hybrid-Electric Propulsion can Achieve 4 times Increase in Cruise Efficiency for a VTOL Aircraft

Engineers at NASA’s Langley Research Center in Hampton, Va., are studying the concept of vertical takeoff and landing electric engine drones with models such as the unmanned aerial system GL-10 Greased Lightning. The GL-10, which has a 10-foot wingspan, recently flew successfully while tethered. Free-flight tests are planned in the fall of 2014. This research …

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ARPA-E will provide $30 million for nuclear fusion research

ARPA-E is making up to $30 million in funding available (DE-FOA-0001184) for Accelerating Low-cost Plasma Heating and Assembly (ALPHA) ALPHA seeks to support innovative R&D on low-cost tools to aid in the future development of fusion power. An ARPA-E program seeks to develop and demonstrate low-cost tools to aid in the development of fusion power, …

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25 years ago China retained political oppression, chose more market economy and more globalization and for now it has worked

Wilson Quarterly describes China’s economic transformation since 1989. In 1989, China made the choice to go with political repression, a market economy and globalization. China’s economy has grown to 24 times its size in 1989. The U.S. economy, by contrast — despite robust economic growth over the past 25 years — is slightly less than …

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