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Archive for the ‘particle physics’ category

Feb 23, 2017

Creating integrated circuits just atoms thick

Posted by in categories: electronics, particle physics

A new technique using liquid metals to create integrated circuits that are just atoms thick could lead to the next big advance for electronics.

The process opens the way for the production of large wafers around 1.5 nanometres in depth (a sheet of paper, by comparison, is 100,000nm thick).

Other techniques have proven unreliable in terms of quality, difficult to scale up and function only at very high temperatures — 550 degrees or more.

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Feb 23, 2017

Plan to attract world’s best talent to ‘science center’ in Zhangjiang

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

As I shared yesterday with others, the world of tech is about to be flipped on its’ head & even spun around several times. So what is the impact? It means that the companies “big tech” & Silicon Valley will need to change & evolve faster than ever or they could see countries with no old tech products & old tech brand will be given an easier playing field to adapt, quick-to-market due to no legacy noise, & refreshing as the new image brand v. an older stigma-brand tied to the good old days of Moore’s Law. So, I see many new versions of SVs outside the US emerging.


Shanghai’s Pudong will build a Tsung-Dao Lee Research Center in the Zhangjiang area, along with a batch of new world-class scientific institutes in a bid to develop the area into a “national science center.”

The research center is named after the Shanghai-born scientist who won the Nobel Prize for physics in 1957 and will focus on particle physics and astrophysics as well as quantum science and technology, the Shanghai Science and Technology Commission said.

“The new center aims to enhance China’s influence on the fields of fundamental physics,” a commission official told reporters yesterday.

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Feb 23, 2017

Single atom feels the quantum heat

Posted by in categories: particle physics, quantum physics

Be discrete —

Single atom feels the quantum heat

Gold climbs a thermal staircase, platinum climbs a thermal hill.

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Feb 23, 2017

Carbon dioxide converts into fuel using ultraviolet light

Posted by in categories: chemistry, particle physics

Harvesting energy from carbon emissions.


Washington: Scientists have developed tiny nano particles that turned carbon dioxide into fuel using light.

Researchers said that carbon dioxide converts into methane, a key building block for many types of fuels, by using only ultraviolet light as an energy source.

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Feb 23, 2017

A Potential Dark Matter Signature Has Been Seen in The Andromeda Galaxy

Posted by in categories: cosmology, particle physics

NASA’s Fermi Telescope has looked at the gamma-ray emission of M31, the Andromeda Galaxy, and discovered the largest fraction of this powerful radiation comes from the core of the galaxy, very much like in our own Milky Way. The international team of researchers has considered this signature as potential indirect evidence of dark matter.

Some theoretical models predict gamma-ray emissions when dark matter particles interact with each other. Dark matter doesn’t like interacting at all, it doesn’t form clumps or clouds, so these gamma-ray signals might only happen in dense regions, like at the core of galaxies.

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Feb 21, 2017

Quantum Entanglement is Just as Einstein Predicted

Posted by in categories: particle physics, quantum physics

I never doubt the theory.


We owe a lot to Einstein, and this week physicists have confirmed another of his theories by unraveling and proving that quantum entanglement does in fact exist. Under the standard quantum theory, nothing has a definitive state until it’s measured, and when two particles interact they become entangled. Being entangled means no longer do the particles have their probabilities but one that includes both particles together. Even though two photons become entangled, they can still travel light years apart from each other, but they will always remain linked.

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Feb 21, 2017

A.I. Machines Are Learning Quantum Physics And Solving Complex Problems On Their Own

Posted by in categories: particle physics, quantum physics, robotics/AI, supercomputing

In the past, traditional methods to understand the behavior of quantum interacting systems have worked well, but there are still many unsolved problems. To solve them, Giuseppe Carleo of ETH Zurich, Switzerland, used machine learning to form a variational approach to the quantum many-body problem.

Before digging deeper, let me tell you a little about the many-body problem. It deals with the difficulty of analyzing “multiple nontrivial relationships encoded in the exponential complexity of the many-body wave function.” In simpler language, it’s the study of interactions between many quantum particles.

If we take a look at our current computing power, modeling a wave function will need lot more powerful supercomputers. But, according to Carleo, the neural networks are pretty good at generalizing. Hence, they need only limited information to infer something. So, fiddling with this idea, Carleo and Matthias Troyer created a simple neural network to reconstruct such multi-body wave function.

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Feb 16, 2017

Revolutionary New Technique Visualizes Biomolecules Without Crystallization

Posted by in categories: particle physics, quantum physics

Quantum interpolation makes viewing Biomolecules at room temp. possible without freezing. This technique will enable more powerful sensors than we have ever had before.


In the latest issue of Proceedings of the National Academy of Sciences, researchers from MIT and Singapore University of Technology and Design are describing a new technique that may finally give life scientists a detailed view into many of the biomolecules they work with. These days, X-ray diffraction is typically used to see the structure of a molecule. But this requires crystallization, a process not all molecules, including many proteins, are unwilling to undergo.

The technology uses tiny diamond crystals that have a nitrogen atom in place of a single carbon atom. These so-called “nitrogen vacancy centers” make the crystals react to minute fluctuations of magnetic and electric fields surrounding them. They’re so sensitive that the spins of individual atoms of a nearby molecule affect them enough to be detected by an external device.

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Feb 16, 2017

Quantum non-Markovianity induced by Anderson localization

Posted by in categories: particle physics, quantum physics

Nice information on Quantum open systems via the existence of a functional relationship between a rigorous measure of quantum non–Markovian ity and the CCA localization. Sharing with my other QC R&D friends.


As discovered by P. W. Anderson, excitations do not propagate freely in a disordered lattice, but, due to destructive interference, they localise. As a consequence, when an atom interacts with a disordered lattice, one indeed observes a non-trivial excitation exchange between atom and lattice. Such non-trivial atomic dynamics will in general be characterised also by a non-trivial quantum information backflow, a clear signature of non–Markovian dynamics. To investigate the above scenario, we consider a quantum emitter, or atom, weakly coupled to a uniform coupled-cavity array (CCA). If initially excited, in the absence of disorder, the emitter undergoes a Markovian spontaneous emission by releasing all its excitation into the CCA (initially in its vacuum state). By introducing static disorder in the CCA the field normal modes become Anderson-localized, giving rise to a non–Markovian atomic dynamics. We show the existence of a functional relationship between a rigorous measure of quantum non–Markovian ity and the CCA localization. We furthermore show that the average non–Markovian ity of the atomic dynamics is well-described by a phenomenological model in which the atom is coupled, at the same time, to a single mode and to a standard — Markovian — dissipative bath.

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Feb 14, 2017

A new technique for creation of entangled photon states developed

Posted by in categories: particle physics, quantum physics

Members of the Faculty of Physics, the Lomonosov Moscow State University have elaborated a new technique for creation of entangled photon states, exhibiting photon pairs, which get correlated (interrelated) with each other. Scientists have described their research in an article, published in the journal Physical Review Letters.

Physicists from the Lomonosov Moscow State University have studied an entangled photon state, in which the state is determined only for the whole system and not for each separate particle.

Stanislav Straupe, Doctor of Sciences in Physics and Mathematics, a member of the Quantum Electronics Department and Quantum Optical Technologies Laboratory at the Faculty of Physics, the Lomonosov Moscow State University, and one of the article co-authors says the following. He explains: “Entangled states are typical and general. The only problem is in the point that for the majority of particles interaction with the environment destroys the entanglement. And photons hardly ever interact with other particles, thus they are a very convenient object for experiments in this sphere. The largest part of light sources we face in our life is a classical one — for instance, the Sun, stars, incandescent lamps and so on. Coherent laser radiation also belongs to the classical part. To create nonclassical light isn’t an easy thing. You could, for instance, isolate a single atom or an artificial structure like a quantum dot and detect its radiation – this is the way for single photons obtaining.”

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