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Jun 24, 2019

New theory for trapping light particles aims to advance development of quantum computers

Posted by in categories: computing, quantum physics, weapons

If we could trap light it could be used as a force field or even a lightsaber in future developments :3.

Quantum computers, which use light particles (photons) instead of electrons to transmit and process data, hold the promise of a new era of research in which the time needed to realize lifesaving drugs and new technologies will be significantly shortened. Photons are promising candidates for quantum computation because they can propagate across long distances without losing information, but when they are stored in matter they become fragile and susceptible to decoherence. Now researchers with the Photonics Initiative at the Advanced Science Research Center (ASRC) at The Graduate Center, CUNY have developed a new protocol for storing and releasing a single photon in an embedded eigenstate—a quantum state that is virtually unaffected by loss and decoherence. The novel protocol, detailed in the current issue of Optica, aims to advance the development of quantum computers.

“The goal is to store and release single photons on demand by simultaneously ensuring the stability of data,” said Andrea Alù, founding director of the ASRC Photonics Initiative and Einstein Professor of Physics at The Graduate Center. “Our work demonstrates that is possible to confine and preserve a single photon in an and have it remain there until it’s prompted by another photon to continue propagating.”

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Jun 24, 2019

Interaction-induced topology in symmetry-broken phase

Posted by in category: quantum physics

Symmetry is a fundamental characteristic in nature. Understanding the mechanisms that break symmetries is essential to scientific research. Spontaneous symmetry breaking (SSB), in particular, occurs when thermal or quantum fluctuations drive a system from a symmetric state into an ordered state, as it occurs when a liquid turns into a solid. This mechanism allows researchers to classify different phases of matter according to the different patterns generated by the broken symmetry.

In the last decades, topology has also been recognized as a crucial characteristic to describe how matter is organized at the fundamental level. In this case, it is no longer the breaking of certain symmetries, but their conservation, which gives rise to novel states of matter, the so-called symmetry-protected topological (SPT) phases. Different topological phases might present the same symmetries, but they can be distinguished by a global topological invariant, which takes integer values and is preserved under continuous deformations.

Current research in condensed matter physics aims to understand how symmetry breaking and symmetry protection compete, in particular in the presence of interactions. In a recent paper published in Nature Communications, ICFO researchers Daniel Gonzalez and Przemyslaw Grzybowski, led by Alexandre Dauphin and ICREA Prof. at ICFO Maciej Lewenstein, in collaboration with Alejandro Bermudez from the Universidad Complutense in Madrid, report how these two processes cooperate, giving rise to new strongly-correlated topological effects.

Jun 24, 2019

Hate speech on Twitter predicts frequency of real-life hate crimes

Posted by in categories: health, robotics/AI

According to a first-of-its-kind study, cities with a higher incidence of a certain kind of racist tweets reported more actual hate crimes related to race, ethnicity, and national origin.

A New York University research team analyzed the location and linguistic features of 532 million tweets published between 2011 and 2016. They trained a machine learning model—one form of artificial intelligence—to identify and analyze two types of tweets: those that are targeted—directly espousing discriminatory views—and those that are self-narrative—describing or commenting upon discriminatory remarks or acts. The team compared the prevalence of each type of discriminatory to the number of actual hate crimes reported during that same time period in those same cities.

The research was led by Rumi Chunara, an assistant professor of computer science and engineering at the NYU Tandon School of Engineering and biostatistics at the NYU College of Global Public Health, and Stephanie Cook, an assistant professor of biostatistics and social and behavioral sciences at the NYU College of Global Public Health.

Jun 24, 2019

Researchers solve mystery of how gas bubbles form in liquid

Posted by in categories: biotech/medical, innovation

The formation of air bubbles in a liquid appears very similar to its inverse process, the formation of liquid droplets from, say, a dripping water faucet. But the physics involved is actually quite different, and while those water droplets are uniform in their size and spacing, bubble formation is typically a much more random process.

Now, a study by researchers at MIT and Princeton University shows that under certain conditions, bubbles can also be coaxed to form spheres as perfectly matched as droplets.

The new findings could have implications for the development of microfluidic devices for biomedical research and for understanding the way interacts with petroleum in the tiny pore spaces of underground rock formations, the researchers say. The findings are published today in the journal PNAS, in a paper by MIT graduate Amir Pahlavan Ph.D. ‘18, Professor Howard Stone of Princeton, MIT School of Engineering Professor of Teaching Innovation Gareth McKinley, and MIT Professor Ruben Juanes.

Jun 24, 2019

How to bend waves to arrive at the right place

Posted by in category: futurism

Waves do not always spread uniformly into all directions, but can form a remarkable “branched flow.” At TU Wien (Vienna) a method has now been developed to control this phenomenon.

In , the light wave of a laser beam propagates on a perfectly straight line. Under certain circumstances, however, the behavior of a wave can be much more complicated. In the presence of a disordered, irregular environment a very strange phenomenon occurs: An incoming wave splits into several paths, it branches in a complicated way, reaching some places with high intensity, while avoiding others almost completely.

This kind of “branched flow” has first been observed in 2001. Scientists at TU Wien (Vienna) have now developed a method to exploit this effect. The core idea of this new approach is to send a wave signal exclusively along one single pre-selected , such that the wave is hardly noticeable anywhere else. The results have now been published in the journal PNAS.

Jun 24, 2019

Did Scientists Stumble on a Battery that Lasts Forever?

Posted by in categories: materials, nanotechnology

Circa 2016

Researchers studying nanowires have found a battery material that can be recharged for years, even decades.

Jun 24, 2019

Google Genomics — Store, process, explore and share Genomics

Posted by in category: computing

Analyze genomic data in the cloud. Google Genomics offers petabyte scale and fast performance on Google Cloud Platform.

Jun 24, 2019

Former Area 51 Scientist Discloses Projects That have Never Been Seen by the Public

Posted by in categories: biotech/medical, space

Space technology expert and former Area 51 rocket designer David Adair will show you visuals and graphics of what the Aerospace Community had intended to build in space with the Shuttle program. These projects have never been seen before or announced to the public.

Learn about: Space Stations, Space Manufacturing, Space Based Medicines and Micro-Gravity Processing that the Aerospace Corporations wanted to build but were told NO by NASA because it was ‘too much industrialization of space’. Prepare to be amazed at the possibilities that exist! Meet and hear from one of the most exceptional rocket scientists of our time.

Jun 24, 2019

Facebook’s Libra Cryptocurrency Just Resuscitated Bitcoin

Posted by in categories: bitcoin, cryptocurrencies

Bitcoin reached the highest value the popular cryptocurrency has had in the last 16 months — $11,251.21 — on Monday.

And Facebook is likely to blame. Analysts suggest that the social media giant’s recent unveiling of its own cryptocurrency called Libra likely bolstered investors’ confidence in crypto across the board, according to Agence France-Presse. Though Bitcoin never really recovered from its massive crash in late 2017, the recent resurgence is a sign that the cryptocurrency isn’t quite fading away as some believed.

Jun 24, 2019

The Universe is 14 Billion Years Old But Visible Universe is 92 Billion Light Years Wide

Posted by in category: cosmology

The Universe is 13.7 billion years old.

About five billion years ago, an energy field that we call dark energy became important. Dark energy is a repulsive form of gravity, which means that the expansion of the universe isn’t slowing down, it’s accelerating.

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