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Nature 430, 839-840 (19 August 2004) | doi:10.1038/430839a; Published online 18 August 2004
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Condensed-matter physics: Vortices weave a tangled web
David R. Nelson1
Abstract
In high-temperature superconductors, quantized vortex filaments can be twisted up into a DNA-like double helix. An experiment is proposed to test how easily these vortex lines cut through each other.
Inside a superconductor, electrical currents flow without resistance. Almost as remarkable as this electron flow without dissipation are the quantized, thread-like vortices of charge that swirl like miniature tornadoes around lines of magnetic field.
- David R. Nelson is in the Department of Physics, and in the Division of Engineering and Applied Science, Harvard University, Cambridge, Massachusetts 02138, USA.
Email: nelson@cmt.harvard.edu
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