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Primeur weekly 2016-12-19

Crowd computing

Quake-detection app captured nearly 400 temblors worldwide ...

Quantum computing

Microsoft intensifies quantum cooperation with QuTech ...

Fast track control accelerates switching of quantum bits ...

Two electrons go on a quantum walk and end up in a qudit ...

Researchers discovered elusive half-quantum vortices in a superfluid ...

Focus on Europe

New e-IRGSP5 support project held its kick-off meeting in Barcelona ...

European Commission to organize eInfrastructure Proposers' Day on January 19, 2017 ...

ARM extends HPC offering with acquisition of software tools provider Allinea Software ...

Martin Kersten appointed ACM Fellow ...

PRACE Preparatory Access Type D expected for early 2017 ...

PRACE SHAPE 4th Call awards 4 new innovative European SME projects ...

Middleware

DDN collaborates with Synergy Solutions Management to offer video surveillance and HPC design, test and training at new Innovations Lab ...

GridGain Professional Edition 1.8 adds in-memory SQL Grid to industry-leading in-memory computing platform ...

Technique shrinks data sets for easier analysis ...

Hardware

Intersect360 Research to launch 9th Annual HPC Budget Map survey ...

DDN named a global leader in object storage by IDC ...

Mellanox 25G/100G Ethernet solutions enables Artificial Intelligence Speech Recognition Technology at iFLYTEK ...

Applications

BMW Group to start research with IBM Watson ...

Fincantieri selects IBM Cloud to meet growing international demand for more efficient shipbuilding ...

Better ranking for Big Data using seriation solution ...

Eye-popping view of CO2, critical step for carbon-cycle science ...

Supercomputer simulation reveals 2D glass can go infinitely soft ...

Extraordinary animation reveals ocean's role in El Niños ...

Pitt engineers receive $500,000 award from NASA to advance additive manufacturing ...

Rice and Baylor team sets new mark for 'deep learning' ...

Method enables machine learning from unwieldy data sets ...

Barrow identifies new genes responsible for ALS using IMB Watson Health ...

Global brain initiatives generate tsunami of neuroscience data ...

The Cloud

Q2 SaaS and PaaS Cloud revenues for Oralce up 81%, and up 89% in non-GAAP constant currency ...

Supercomputer simulation reveals 2D glass can go infinitely soft


Left and right figures are schematic diagrams of glassy solid in two and three dimensions. Modality of the dynamics of glassy solid in different dimensions is illustrated. In three dimensions, a particle vibrates inside a cage formed by neighboring particles, due to the densely packed condition of the particles, and intermittently goes out of the cage. In two dimensions, long-wavelength vibrational sound waves induce coherent motion of the particles with a large amplitude that can in principle exceed the length scale of particle radii - the aqua coloured circle on the left indicates that the caged particle can move a large distance. Credit: Hayato Shiba.
13 Dec 2016 Sendai - Scientists in Japan have revealed that if a glassy solid possesses a planar (sheet-like) structure, it can exhibit enhanced thermal vibration motion due to the same mechanism known for the planar crystals - two-dimensional crystals, by using large-scale simulations on supercomputers.

"Imagine if we could make a sheet of glass, which has a two-dimensional (2D) planate shape", stated Dr. Hayato Shiba, of Tohoku University's Institute for Materials Research (IMR). "In such a confined spatial dimension, a variety of novel phenomena takes place in usual 'periodic' systems - crystals, spin systems etc. This is due to the thermal motion of the constituents taking place on a larger scale because of the limited spatial dimensions."

Such enhanced thermal motion is known to induce new physical phenomena which Dr. Shiba, and his research team of Yasunori Yamada, IMR; Takeshi Kawasaki, Nagoya University; and Kang Kim, Osaka University, hope will lead the development of new functional materials and devices necessary for the realization of energy-saving societies.

However, it is still uncertain whether 2D glass, as an "non-periodic" system, exhibits such enhanced thermal motions.

"Our result indicates that 2D glass can become soft, gradually and forever, as we go to the macroscopic scales. Consequently, the vibration amplitude becomes infinite because of the large-scale motions", stated Dr. Shiba.

"In other words, such materials might exhibit strong responses to external fields or deformation. The thermal vibration is perfectly different from that in a 3D glass, and it can even alter the fundamental nature of vitrification and glassy phase transition."

In the experiments, 2D glass was experimentally realized using colloidal systems, and can also be realized using other soft and hard materials.

The paper is titled " Unveiling Dimensionality Dependence of Glassy Dynamics: 2D Infinite Fluctuation Eclipses Inherent Structural Relaxation .

Source: Tohoku University

Back to Table of contents

Primeur weekly 2016-12-19

Crowd computing

Quake-detection app captured nearly 400 temblors worldwide ...

Quantum computing

Microsoft intensifies quantum cooperation with QuTech ...

Fast track control accelerates switching of quantum bits ...

Two electrons go on a quantum walk and end up in a qudit ...

Researchers discovered elusive half-quantum vortices in a superfluid ...

Focus on Europe

New e-IRGSP5 support project held its kick-off meeting in Barcelona ...

European Commission to organize eInfrastructure Proposers' Day on January 19, 2017 ...

ARM extends HPC offering with acquisition of software tools provider Allinea Software ...

Martin Kersten appointed ACM Fellow ...

PRACE Preparatory Access Type D expected for early 2017 ...

PRACE SHAPE 4th Call awards 4 new innovative European SME projects ...

Middleware

DDN collaborates with Synergy Solutions Management to offer video surveillance and HPC design, test and training at new Innovations Lab ...

GridGain Professional Edition 1.8 adds in-memory SQL Grid to industry-leading in-memory computing platform ...

Technique shrinks data sets for easier analysis ...

Hardware

Intersect360 Research to launch 9th Annual HPC Budget Map survey ...

DDN named a global leader in object storage by IDC ...

Mellanox 25G/100G Ethernet solutions enables Artificial Intelligence Speech Recognition Technology at iFLYTEK ...

Applications

BMW Group to start research with IBM Watson ...

Fincantieri selects IBM Cloud to meet growing international demand for more efficient shipbuilding ...

Better ranking for Big Data using seriation solution ...

Eye-popping view of CO2, critical step for carbon-cycle science ...

Supercomputer simulation reveals 2D glass can go infinitely soft ...

Extraordinary animation reveals ocean's role in El Niños ...

Pitt engineers receive $500,000 award from NASA to advance additive manufacturing ...

Rice and Baylor team sets new mark for 'deep learning' ...

Method enables machine learning from unwieldy data sets ...

Barrow identifies new genes responsible for ALS using IMB Watson Health ...

Global brain initiatives generate tsunami of neuroscience data ...

The Cloud

Q2 SaaS and PaaS Cloud revenues for Oralce up 81%, and up 89% in non-GAAP constant currency ...