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Science Vignettes

Chen2020

World's first 3-D Simulations of Superluminous Supernovae

April 20, 2020

For the first time ever, an international team of astrophysicists simulated the three-dimensional (3-D) physics of superluminous supernovae — which are about a hundred times more luminous than typical supernovae. They achieved this milestone using Berkeley Lab's CASTRO code and supercomputers at NERSC. Read More »

Bansal

Designing Materials with Tunable Electrical and Magnetic Behaviors

April 13, 2020

For the first time, the coupling of magnetic spins and atomic dynamics has been fully described in hexagonal iron sulfide (h-FeS), explaining the origin of its fascinating coexistence of metal-insulator, structural, and magnetic transitions. Read More »

BianAluie

New Conservation Laws in Turbulent Magnetized Flows

University of Rochester (UofR) researchers used a novel coarse-graining framework for disentangling multiscale interactions to find the existence of two separate conservation laws over an entire range of length scales in turbulent magnetized flows. The work relied on a suite of massively parallel simulations run on NERSC using the DiNuSUR code developed at UofR. Read More »

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Petawatt Laser Guiding and Electron Beam Acceleration to 8 GeV in a Laser-Heated Capillary Discharge Waveguide

Researchers at Berkeley Lab’s BELLA Center set a new world record in laser-driven plasma-based electron acceleration by obtaining beams with an energy of up to 7.8 GeV in a 20 cm-long plasma using the high-power BELLA laser. The maximum achieved energy nearly doubled their previous record set in 2014. Read More »

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Machine-Learned Impurity Level Prediction in Semiconductors

Argonne National Laboratory (ANL) researchers ran high-throughout atomistic simulations on NERSC supercomputers and generated comprehensive computational datasets of impurity properties in two classes of semiconductors: lead-based hybrid perovskites and Cd-based chalcogenides. These datasets led to machine learned models which enable accelerated prediction and design for the entire chemical space of materials and impurities in these semiconductor class. Read More »