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Archive for the ‘quantum physics’ category: Page 792

May 9, 2016

First single-enzyme method to produce quantum dots revealed

Posted by in categories: engineering, particle physics, quantum physics, solar power, sustainability

Creating Q-Dots/ QDs (Acronym seems to depend on which reference book, article that you read) more cheaply and efficiently too.


Quantum dots (QDs) are semiconducting nanocrystals prized for their optical and electronic properties. The brilliant, pure colors produced by QDs when stimulated with ultraviolet light are ideal for use in flat screen displays, medical imaging devices, solar panels and LEDs. One obstacle to mass production and widespread use of these wonder particles is the difficulty and expense associated with current chemical manufacturing methods that often requiring heat, high pressure and toxic solvents.

But now three Lehigh University engineers have successfully demonstrated the first precisely controlled, biological way to manufacture quantum dots using a single-enzyme, paving the way for a significantly quicker, cheaper and greener production method. Their work was recently featured in an article in The New York Times called “A curious tale of quantum dots.”

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May 9, 2016

The Quantum Experience: Feynman’s vision comes into focus

Posted by in categories: computing, quantum physics

Great article about a mad-scientist whose vision caused the world to look cross-eyed. Many of us have been there before some time in our lives.

In 1981, Richard Feynman urged the world to build a quantum computer. In his own words.

“Nature isn’t classical, dammit, and if you want to make a simulation of nature, you’d better make it quantum mechanical, and by golly it’s a wonderful problem, because it doesn’t look so easy.”

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May 9, 2016

Communicating covertly goes quantum

Posted by in category: quantum physics

Communication Quantum Style!

https://www.sciencenews.org/article/communicating-covertly-goes-quantum


Researchers are working to make quantum messages that are undetectable.

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May 9, 2016

Researchers Making Progress With Quantum Computing

Posted by in categories: computing, governance, government, internet, particle physics, quantum physics

I personally can confirm that QC is not being worked on and advance by just a couple groups such as D-Wave and IBM. The questions/bumps in the road that we will all face is threefold:

1) how do we standardize the QC? right now (like most innovation) is done in siloes and limited cross-collaboration across government, labs & universities, and commercial companies. 2) governance and compliance; how will these need to change across multiple areas 3) id & mitigate all impacts instead of after deployment (don’t be reactive) because we will not have that luxury due to hackers.


There is a temptation to lump quantum computing in with technologies such as fusion power in the sense that both have been proposed for decades with the promise of tremendous leaps in performance.

Continue reading “Researchers Making Progress With Quantum Computing” »

May 9, 2016

Neutrons tap into magnetism in topological insulators at high temperatures

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

I know that I reported on this a few weeks ago; however, this article shares some additional insights on how this new method will enable more efficient smaller devices including promoting stabilization in Quantum Computing (QC)…


A multi-institutional team of researchers has discovered novel magnetic behavior on the surface of a specialized material that holds promise for smaller, more efficient devices and other advanced technology.

Researchers at the Department of Energy’s Oak Ridge National Laboratory, Massachusetts Institute of Technology and their collaborators used neutron scattering to reveal magnetic moments in hybrid topological insulator (TI) materials at room temperature, hundreds of degrees Fahrenheit warmer than the extreme sub-zero cold where the properties are expected to occur.

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May 9, 2016

Quantum Swing: a pendulum that moves forward and backwards at the same time

Posted by in categories: particle physics, quantum physics

One of those freaky states of Quantum. Wild.


Two-quantum oscillations of atoms in a semiconductor crystal are excited by ultrashort terahertz pulses. The terahertz waves radiated from the moving atoms are analyzed by a novel time-resolving method and demonstrate the non-classical character of large-amplitude atomic motions.

The classical pendulum of a clock swings forth and back with a well-defined elongation and velocity at any instant in time. During this motion, the total energy is constant and depends on the initial elongation which can be chosen arbitrarily. Oscillators in the quantum world of atoms and molecules behave quite differently: their energy has discrete values corresponding to different quantum states. The location of the atom in a single quantum state of the oscillator is described by a time-independent wavefunction, meaning that there are no oscillations.

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May 7, 2016

New study looks into the everyday miracle that is water

Posted by in category: quantum physics

Whatever the truth about claims that cloud-seeding was responsible for the floods in March, one thing is certain – during the downpours, thousands of people in the UAE were exposed to a bizarre quantum substance at the focus of ­intense scientific research.

Colourless and odourless, its behaviour is unlike that of any other known compound. While most shrink when they freeze, this stuff expands. It’s very hard to be heated up but once turned into liquid, it’s extremely resistant to pressure.

Exposure to it in any form can be fatal. Its liquid form is responsible for dozens of deaths each year in the UAE.

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May 7, 2016

Mechanism of Hepatocellular Toxicity Decoded With Quantum Chemical Computations

Posted by in category: quantum physics

Finally, how Quantum Chemical Computations is changing our world today.

Awesome!


Hepatocellular carcinoma is one of the most common forms of cancer, and the primary cause has been attributed to liver fibrosis by chemical toxins, which is followed by liver cirrhosis.

Continue reading “Mechanism of Hepatocellular Toxicity Decoded With Quantum Chemical Computations” »

May 7, 2016

Government Lab Reveals It Has Operated Quantum Internet for Over Two Years

Posted by in categories: government, internet, quantum physics

Old article from 3 yrs ago shared by MIT on Los Alamos Q-Net. Cannot wait for it; I believe we’re reading for it.


A quantum internet capable of sending perfectly secure messages has been running at Los Alamos National Labs for the last two and a half years, say researchers.

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May 7, 2016

Google Announced Their D-Wave 2X Quantum Computer Succesfully Works

Posted by in categories: quantum physics, supercomputing

It seems that the D-Wave Computer does work, and the theory is that the hardware is 3,600 times faster than other supercomputers. It is the nearest we have to quantum computing, and there have been two tests leading to the announcement that it was far more quickly than simulated annealing which is a copy of quantum computation carried out on a standard computer chip.

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