Submitted via IRC for Fnord666
World speed record for polymer simulations shattered by over a hundred-fold
"5D Entanglement in Star Polymer Dynamics," by Airidas Korolkovas [was] published in Advanced Theory and Simulations, a new journal focusing on breakthroughs in the science of modelling. A unique computer algorithm was invented to capture the billions of steps needed for entangled polymers. It runs on a Graphical Processing Unit (GPU) and takes advantage of texture mapping, an often-overlooked functionality. Originally, this feature was designed for video games, but here it has been repurposed to calculate the molecular forces inside a little polymer droplet. Using a streamlined physics model, this simulation runs hundreds of times faster than traditional code. It opens new horizons on the time scales that can be addressed in scientific computing. This can further push the frontiers for the latest generation of supercomputers, like the recently opened Summit in Oak Ridge National Lab, USA, which has almost 30,000 GPUs.
The effect of higher dimensional entanglement can be observed in real life, using an instrument called neutron spin-echo. This machine shoots tiny subatomic particles, called neutrons, and listens to the echo of their nuclear spin as they scatter, or bounce off the polymer sample. A prime example is the IN15 beamline at the Institut Laue-Langevin, France, where the entanglement of linear polymers was first discovered. Thanks to constant upgrades and to upcoming new facilities like the European Spallation Source, Sweden, an experimental proof of the simulation prediction for star polymers may soon be within reach. A combination of high performance computing and neutron scattering is a powerful tool of discovery for new materials that improve our quality of life and respect the environment.
5D Entanglement in Star Polymer Dynamics (DOI: 10.1002/adts.201800078) (DX)
(Score: 1, Funny) by Anonymous Coward on Wednesday September 19 2018, @05:42PM
"A combination of high performance computing and neutron scattering is a powerful tool of discovery for new materials that improve our quality of life and respect the environment."
Market-speak is a constant through the generations, like Ronald Raygun
(Score: 2) by suburbanitemediocrity on Wednesday September 19 2018, @07:08PM
much less over one hundred.
Very impressive
(Score: 3, Touché) by bart9h on Wednesday September 19 2018, @08:10PM (3 children)
Aren't neutrons, by far, the largest subatomic particles?
(Score: 2) by suburbanitemediocrity on Wednesday September 19 2018, @08:21PM (1 child)
It's empty space all the way down.
(Score: 0) by Anonymous Coward on Wednesday September 19 2018, @09:05PM
as someone that should be more famous than Einstein said :
(Score: 2) by Immerman on Wednesday September 19 2018, @10:08PM
Well, at least until you get down to quarks, which are mostly far more massive than the particles made of them. Though if you're talking diameter rather than mass, then it sounds like quarks are pointlike down to the limits of our ability to measure them.
(Score: 0) by Anonymous Coward on Wednesday September 19 2018, @09:08PM (3 children)
Can someone explain to a moron what is a 5D Entangled Star Polymer ?
(Score: 2) by Immerman on Wednesday September 19 2018, @09:48PM (1 child)
Without any particular understanding of the topic, but from a brief read of the abstract (https://arxiv.org/abs/1805.08508),
It sounds like there's probably five variables that govern the relaxation properties of a star polymer, with relaxation taking place when two variables can change simultaneously. Hence "five entangled dimensions" in which the polymer can dynamically change under stress.
Oh, and a star polymer is a branching polymer where many linear chains branch out from star-shaped "hubs"
(Score: 0) by Anonymous Coward on Wednesday September 19 2018, @11:40PM
thanks I was thinking about astronomy and was daezed by the polymers made out of stars
(Score: 0) by Anonymous Coward on Thursday September 20 2018, @04:34AM
You are 5d AC.
1) username
2) day of week of post
3) month of post
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5) time of post