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Quarks Influenced by Their Neighborhood
November 20, 2009
The quark structure inside protons and neutrons changes based on the local nuclear environment, according to electron accelerator experiments.
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Ernst Helmut Brandt
Ernst Helmut Brandt is a physicist in the Max Planck Institute for Metals Research in Stuttgart, Germany. Helmut’s theoretical work has always been concerned with the Abrikosov vortex lattice in type-II superconductors, particularly with the ideal lattice, its nonlocal elastic response, lattice defects, pinning, and effects of geometry on the electromagnetic response of superconductors. He received his diploma and Ph.D. from Stuttgart University and has been for extended visits at Moscow University, Ames Laboratory, AT&T Bell Laboratories, and Shanghai University. He was named an Outstanding Referee by the American Physical Society in 2008.
Attractive vortices
Decoration experiments of the two-gap superconductor MgB2 show evidence for long-range attraction between vortices in a superconducting mixed state, which is interpreted as coexisting type-I and type-II superconductivity. Read More »