March 2023   |   Astrophysics

Cosmic coding

Berkeley Lab and Argonne computational cosmologists help astronomers turn observation into insight.

Energy, Materials Science
March 2023

Light handling

A UT Austin-led team links supercomputer simulations and material fabrication to advance light-related devices.

Profiles in Computing
February 2023

Piecing together HPC and a career

ASCR’s outgoing associate director reflects on a decades-long career that took her from a helpdesk to overseeing DOE’s supercomputing facilities.

February 2023

High and dry

A new supercomputer drought model projects dry times ahead for much of the nation, especially the Midwest.

Science Highlights

October 2022

Untangling quantum entanglement

An Oak Ridge-led team identifies a promising so-called entanglement witnesses to identify pairs of entangled magnetic particles.

Proving quantum entanglement – when a magnetic particle’s spin mirrors another’s properties and behavior regardless of their distance from each other – has been a major challenge in quantum information science. The team studied an entanglement witness, or method for identifying entanglement, called QFI  (quantum Fisher information) by applying the witness to neutron scattering experiments at the Spallation Neutron Source, a Department of Energy user facility at DOE’s Oak Ridge National Laboratory. Because of their neutral charge and nondestructive nature, the neutrons provided valuable insights into the properties of two different spin chains, or linear lines of connected spins within quantum materials. To validate their results, the researchers also ran computational simulations and analyzed data from older experiments conducted at the ISIS Neutron Source and the Institut Laue-Langevin.

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