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The time dependent SLDA (superfluid local density approximation) provides a scalable and robust mathematical framework to study the highly nonlinear microscopic dynamics of Fermi systems. Fermionic vortex crossings and exchanges are shown as time progresses in an excited system of cold atoms in an elongated trap. The process is reminiscent of DNA recombination and indicative of the onset of quantum turbulence. The dynamics of quantum turbulence in Fermi systems may provide insight into the pinning and de-pinning vortex mechanisms in neutron stars, for example. (Science, 10 June 2011: Vol. 332 no. 6035 pp. 1288-1291 DOI: 10.1126/science.1201968)

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Document Title: Fermionic vortex crossings and exchanges
Category: Computer Science
Media Type: Graphics
Date of Image/Photo: May 2011
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URL of this page: http://picturethis.pnl.gov/picturet.nsf/by+id/DRAE-8HWLH7

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